CVE-2025-21999

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-04-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

proc: fix UAF in proc_get_inode()

Fix race between rmmod and /proc/XXX's inode instantiation.

The bug is that pde->proc_ops don't belong to /proc, it belongs to a module, therefore dereferencing it after /proc entry has been registered is a bug unless use_pde/unuse_pde() pair has been used.

use_pde/unuse_pde can be avoided (2 atomic ops!) because pde->proc_ops never changes so information necessary for inode instantiation can be saved _before_ proc_register() in PDE itself and used later, avoiding pde->proc_ops->... dereference.

rmmod lookup sys_delete_module proc_lookup_de pde_get(de); proc_get_inode(dir->i_sb, de); mod->exit() proc_remove remove_proc_subtree proc_entry_rundown(de); free_module(mod);

if (S_ISREG(inode->i_mode)) if (de->proc_ops->proc_read_iter) --> As module is already freed, will trigger UAF

BUG: unable to handle page fault for address: fffffbfff80a702b PGD 817fc4067 P4D 817fc4067 PUD 817fc0067 PMD 102ef4067 PTE 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 26 UID: 0 PID: 2667 Comm: ls Tainted: G Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:proc_get_inode+0x302/0x6e0 RSP: 0018:ffff88811c837998 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffffffffc0538140 RCX: 0000000000000007 RDX: 1ffffffff80a702b RSI: 0000000000000001 RDI: ffffffffc0538158 RBP: ffff8881299a6000 R08: 0000000067bbe1e5 R09: 1ffff11023906f20 R10: ffffffffb560ca07 R11: ffffffffb2b43a58 R12: ffff888105bb78f0 R13: ffff888100518048 R14: ffff8881299a6004 R15: 0000000000000001 FS: 00007f95b9686840(0000) GS:ffff8883af100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbfff80a702b CR3: 0000000117dd2000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: proc_lookup_de+0x11f/0x2e0 __lookup_slow+0x188/0x350 walk_component+0x2ab/0x4f0 path_lookupat+0x120/0x660 filename_lookup+0x1ce/0x560 vfs_statx+0xac/0x150 __do_sys_newstat+0x96/0x110 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e

[[email protected]: don't do 2 atomic ops on the common path]

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 3, 2025

Last Modified

October 15, 2026

Advisory Details (10)

Auto-updated Jul 14, 2026
Patch available.
Web page

SSA-019113

https://cert-portal.siemens.com/productcert/html/ssa-019113.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4193-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4178-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ede3e8ac90ae106f0b29cd759aadebc1568f1308
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eda279586e571b05dff44d48e05f8977ad05855d
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/966f331403dc3ed04ff64eaf3930cf1267965e53
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/654b33ada4ab5e926cd9c570196fefa7bec7c1df
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/64dc7c68e040251d9ec6e989acb69f8f6ae4a10b
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/63b53198aff2e4e6c5866a4ff73c7891f958ffa4
Web page

proc: fix UAF in proc_get_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4b0b8445b6fd41e6f62ac90547a0ea9d348de3fa

Vendor Advisories for CVE-2025-21999(7)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1038.44) @ noble2026-10-15ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1040.42~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-realtime (5.15.0.1086.90) @ jammy2026-10-15ubuntu
ubuntulinux-tools-intel-iotg (5.15.0.1081.81) @ jammy2026-10-15ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-28.28) @ oracular2026-10-15ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1039.42.1) @ noble2026-10-15ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-84.84~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-lowlatency-64k (6.11.0-1015.16) @ oracular2026-10-15ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1083.89~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-tools-oem-24.04b (6.11.0-1024.24) @ noble2026-10-15ubuntu
ubuntulinux-tools-aws-lts-22.04 (5.15.0.1086.89) @ jammy2026-10-15ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1050.54) @ jammy2026-10-15ubuntu
ubuntulinux-tools-azure-fips (5.15.0.1091.76) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gcp-fips (5.15.0.1085.75) @ jammy2026-10-15ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1091.100~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-tools-azure-6.11 (6.11.0-1018.18) @ oracular2026-10-15ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1080.78) @ jammy2026-10-15ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1083.89~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1034.35) @ noble2026-10-15ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1037.37) @ noble2026-10-15ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1034.35~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2031.32) @ noble2026-10-15ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-85.85~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1037.38) @ noble2026-10-15ubuntu
ubuntulinux-tools-azure-nvidia-lts-24.04 (6.8.0-1025.27) @ noble2026-10-15ubuntu
redhatkernel-0:5.14.0-427.127.1.el9_42026-05-27redhat
redhatkernel-0:5.14.0-284.172.1.el9_22026-05-26redhat
redhatkernel-rt-0:5.14.0-284.172.1.rt14.457.el9_22026-05-20redhat
redhatkernel-0:6.12.0-55.18.1.el10_02025-06-23redhat
redhatkernel-0:5.14.0-570.22.1.el9_62025-06-16redhat
linuxKernel @ 5.10.236 (fixes >=5.6.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (45 versions)
  • every version up to 5.10.237-1: fixed in 5.10.237-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.129-1~deb11u1 (7 versions)
  • every version up to 6.1.137-1~deb11u1: fixed in 6.1.137-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (36 versions)
  • every version up to 6.1.133-1: fixed in 6.1.133-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.21-1: fixed in 6.12.21-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.21-1: fixed in 6.12.21-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(19)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 17× in last 7d / 36× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 96 of 185 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 89 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 02:39 UTCEG score recompute
  2. 2026-10-15 02:39 UTCVendor advisory
  3. 2026-10-15 02:39 UTCGHSA enrichmentGHSA-vmv5-h8c6-426p · GitHub severity HIGH · GitHub CVSS 7.8
  4. 2026-10-15 01:44 UTCEG score recompute
  5. 2026-10-15 01:44 UTCVendor advisory
  6. 2026-10-15 01:43 UTCGHSA enrichmentGHSA-vmv5-h8c6-426p · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-10-12 17:19 UTCEG score recompute
  10. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-11 20:51 UTCEG score recompute
  12. 2026-10-11 19:01 UTCEG score recompute
  13. 2026-10-11 15:41 UTCEG score recompute
  14. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-10-02 16:26 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 12th percentile
Show 71 more
  1. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-09-28 00:49 UTCOSV refresh
  3. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  5. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  6. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-09-15 03:09 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-09-08 08:50 UTCEG score recompute
  20. 2026-09-08 08:50 UTCVendor advisory
  21. 2026-09-08 08:49 UTCGHSA enrichmentGHSA-vmv5-h8c6-426p · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-09-07 12:48 UTCOSV refresh
  24. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-09-05 15:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  26. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  27. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  28. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  29. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  31. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  32. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  33. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  34. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  35. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  36. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  37. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  38. 2026-08-20 22:31 UTCOSV refresh
  39. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  40. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  41. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  42. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  43. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  44. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  45. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  46. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  47. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  48. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  49. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  50. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  51. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  52. 2026-08-05 14:00 UTCEG score recompute
  53. 2026-08-05 14:00 UTCVendor advisory
  54. 2026-08-05 13:59 UTCGHSA enrichmentGHSA-vmv5-h8c6-426p · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  56. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  57. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  58. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  59. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  60. 2026-07-30 07:15 UTCEG score recompute
  61. 2026-07-30 07:15 UTCVendor advisory
  62. 2026-07-30 07:15 UTCGHSA enrichmentGHSA-vmv5-h8c6-426p · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  64. 2026-07-28 15:35 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  65. 2026-07-27 14:12 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  66. 2026-07-26 14:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  67. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  68. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  69. 2026-07-24 10:11 UTCOSV refresh
  70. 2026-07-23 14:17 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  71. 2026-07-23 02:50 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-21999?
CVE-2025-21999 is a high-severity vulnerability; its CVE record was published on April 3, 2025. In the Linux kernel, the following vulnerability has been resolved: proc: fix UAF in procgetinode() Fix race between rmmod and /proc/XXX's inode instantiation. The bug is that pde->proc_ops don't belong to /proc, it belongs to a module, therefore dereferencing it after /proc entry has been…
When was the CVE record for CVE-2025-21999 published?
The CVE record for CVE-2025-21999 was published on April 3, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2025-21999 actively exploited?
CVE-2025-21999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-21999?
CVE-2025-21999 has a CVSS v3.1 base score of 7.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-21999?
A fix for CVE-2025-21999 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-21999 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-21999

Explore →

Is Your Infrastructure Affected by CVE-2025-21999?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs