CVE-2025-38498

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2025-07-30. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

do_change_type(): refuse to operate on unmounted/not ours mounts

Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns permission checking with the rest of mount(2).

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
8th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

July 30, 2025

Last Modified

October 15, 2026

Advisory Details (10)

Auto-updated Aug 2, 2026
Patch available.
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4328-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4327-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/787937c4e373f1722c4343e5a5a4eb0f8543e589
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4f091ad0862b02dc42a19a120b7048de848561f8
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/432a171d60056489270c462e651e6c3a13f855b1
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/19554c79a2095ddde850906a067915c1ef3a4114
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/12f147ddd6de7382dad54812e65f3f08d05809fc
Web page

do_change_type(): refuse to operate on unmounted/not ours mounts - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/064014f7812744451d5d0592f3d2bcd727f2ee93

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-realtime-5.15 (5.15.0.1092.96) @ jammy2026-05-21ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1090.96~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1096.94) @ jammy2026-05-21ubuntu
ubuntulinux-tools-kvm-5.15 (5.15.0.1088.84) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-tegra-igx-rt-5.15 (5.15.0.1034.36) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1096.105~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-tools-oracle-edge (6.14.0-1013.13~24.04.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-raspi-6.14 (6.14.0-1014.14) @ plucky2026-05-21ubuntu
ubuntulinux-tools-oem-6.14 (6.14.0-1012.12) @ noble2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1056 (5.15.0-1056.60) @ jammy2026-05-21ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.14.0-1012.12~24.04.1) @ noble2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-32.32) @ plucky2026-05-21ubuntu
ubuntulinux-tools-azure-6.14 (6.14.0-1012.12) @ plucky2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1092.82) @ jammy2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-32.32~24.04.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1096.81) @ jammy2026-05-21ubuntu
redhatkernel-0:4.18.0-305.179.1.el8_42025-12-04redhat
redhatkernel-0:4.18.0-193.173.1.el8_22025-11-18redhat
redhatkernel-0:5.14.0-611.8.1.el9_72025-11-17redhat
redhatkernel-0:6.12.0-124.9.1.el10_12025-11-12redhat
redhatkernel-rt-0:5.14.0-70.149.1.rt21.221.el9_02025-10-15redhat
redhatkernel-0:4.18.0-372.164.1.el8_62025-10-15redhat
redhatkernel-0:5.14.0-70.149.1.el9_02025-10-15redhat
redhatkernel-0:5.14.0-427.94.1.el9_42025-10-14redhat
redhatkernel-0:5.14.0-284.142.1.el9_22025-10-13redhat
redhatkernel-0:4.18.0-477.114.1.el8_82025-10-08redhat
redhatkernel-0:5.14.0-570.46.1.el9_62025-09-23redhat
redhatkernel-0:4.18.0-553.76.1.el8_102025-09-22redhat
redhatkernel-0:6.12.0-55.33.1.el10_02025-09-15redhat
linuxKernel @ 5.4.295 (fixes >=2.6.15)—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 (46 versions)
  • every version up to 5.10.244-1: fixed in 5.10.244-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.148-1~deb11u1 (11 versions)
  • every version up to 6.1.153-1~deb11u1: fixed in 6.1.153-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (41 versions)
  • every version up to 6.1.147-1: fixed in 6.1.147-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.35-1: fixed in 6.12.35-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.35-1: fixed in 6.12.35-1
—

Additional Vendor Advisories

(11)

Data Freshness Timeline

(refreshed 8× 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 210 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 114 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  7. 2026-10-18 05:35 UTCEG score recompute
  8. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-15 01:59 UTCEG score recompute
  12. 2026-10-15 01:59 UTCVendor advisory
  13. 2026-10-15 01:59 UTCGHSA enrichmentGHSA-5q28-72v3-hrw6 · GitHub CVSS 5.5
  14. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-10-12 17:07 UTCEG score recompute
  17. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-11 20:40 UTCEG score recompute
  19. 2026-10-11 18:51 UTCEG score recompute
  20. 2026-10-11 15:28 UTCEG score recompute
  21. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 71 more
  1. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  8. 2026-09-27 02:45 UTCOSV refresh
  9. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  20. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-09-07 11:47 UTCOSV refresh
  26. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  27. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  28. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  29. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  30. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  31. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  32. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  33. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  35. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  36. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  37. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  38. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  39. 2026-08-20 20:31 UTCOSV refresh
  40. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  41. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  42. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  43. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  44. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  45. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  46. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  47. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  48. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  49. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  50. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-08-05 13:02 UTCEG score recompute
  52. 2026-08-05 13:02 UTCVendor advisory
  53. 2026-08-05 13:02 UTCGHSA enrichmentGHSA-5q28-72v3-hrw6 · GitHub CVSS 5.5
  54. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  55. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  56. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  57. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  58. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  60. 2026-07-30 07:05 UTCEG score recompute
  61. 2026-07-30 07:05 UTCVendor advisory
  62. 2026-07-30 07:05 UTCGHSA enrichmentGHSA-5q28-72v3-hrw6 · GitHub CVSS 5.5
  63. 2026-07-30 06:24 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  64. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  65. 2026-07-28 15:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  66. 2026-07-27 15:57 UTCOSV refresh
  67. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  68. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  69. 2026-07-23 02:54 UTCEG score recompute
  70. 2026-07-22 14:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  71. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile

Frequently asked(5)

What is CVE-2025-38498?
CVE-2025-38498 is a medium-severity vulnerability; its CVE record was published on July 30, 2025. In the Linux kernel, the following vulnerability has been resolved: dochangetype(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns permission checking with the rest of…
When was the CVE record for CVE-2025-38498 published?
The CVE record for CVE-2025-38498 was published on July 30, 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-2025-38498 actively exploited?
CVE-2025-38498 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-38498?
CVE-2025-38498 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-38498?
A fix for CVE-2025-38498 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-38498 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-2025-38498

Explore →

Is Your Infrastructure Affected by CVE-2025-38498?

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