CVE-2026-53002

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-24. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

netfilter: conntrack: remove sprintf usage

Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check.

Increase buffer size in mangle_content_len() while at it.

BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

June 24, 2026

Last Modified

September 10, 2026

Advisory Details (12)

Auto-updated Sep 10, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:66000
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:64770
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c08ff52e44945e6ef4ce0790f49ea761b060c45b
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ab64e61c9323fa6de21bd20da1ddb29a0fb65d34
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a8e0a32a23d3f34862af3b4da792ecb3a891a9a3
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8e3be0d12615a173fe260cd42753ca7a001acbf2
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e7066bdb481a87fe88c4fa563e348c03b2d373d
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6bbf829b4c1b44c941c47dd0d710f1393258f3d5
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2f793ba78470a99f40389b7dc60a81d9f5ad3956
generic

netfilter: conntrack: remove sprintf usage - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e
redhat Patch Available

CVE-2026-53002 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-53002
redhat Patch Available

2492329 – (CVE-2026-53002) CVE-2026-53002 kernel: netfilter: conntrack: remove sprintf usage

Affected: Red Hat Enterprise Linux 8

https://bugzilla.redhat.com/show_bug.cgi?id=2492329

Vendor Advisories for CVE-2026-53002(3)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:5.14.0-687.46.1.el9_82026-09-10redhat
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-10ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-10ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-10ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-10ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-10ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-10ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-10ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.254.238) @ bionic2026-09-10ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1080 (5.4.0-1080.84) @ focal2026-09-10ubuntu
ubuntulinux-virtual (3.13.0.217.227) @ trusty2026-09-10ubuntu
ubuntulinux-tools-azure-fips-5.4 (5.4.0.1167.103) @ focal2026-09-10ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.287.293) @ xenial2026-09-10ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-10ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-10ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-10ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-10ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-09-10ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-10ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-10ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-10ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-10ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-10ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1107.113~20.04.1) @ focal2026-09-10ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-10ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-10ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-09-10ubuntu
ubuntulinux-tools-gcp-fips-5.4 (5.4.0.1165.107) @ focal2026-09-10ubuntu
redhatkernel-0:4.18.0-553.160.1.el8_102026-09-09redhat
redhatkernel-rt-0:4.18.0-553.160.1.rt7.501.el8_102026-09-08redhat

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 rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (140 versions)7.0.10-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(23)

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 23× in last 7d / 173× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 581 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 13:38 UTCEG score recompute
  3. 2026-09-10 13:38 UTCVendor advisory
  4. 2026-09-10 13:37 UTCGHSA enrichment
  5. 2026-09-10 12:26 UTCEG score recompute
  6. 2026-09-10 12:26 UTCVendor advisory
  7. 2026-09-10 12:25 UTCGHSA enrichment
  8. 2026-09-10 09:35 UTCEPSS rescore
  9. 2026-09-09 13:39 UTCEG score recompute
  10. 2026-09-09 13:39 UTCVendor advisory
  11. 2026-09-09 13:39 UTCGHSA enrichment
  12. 2026-09-09 12:37 UTCEG score recompute
  13. 2026-09-09 12:37 UTCVendor advisory
  14. 2026-09-09 12:37 UTCGHSA enrichment
  15. 2026-09-08 22:01 UTCEPSS rescore
  16. 2026-09-08 09:44 UTCEG score recompute
  17. 2026-09-08 09:44 UTCVendor advisory
  18. 2026-09-08 09:43 UTCGHSA enrichment
  19. 2026-09-08 08:58 UTCEG score recompute
  20. 2026-09-08 08:58 UTCVendor advisory
  21. 2026-09-08 08:58 UTCGHSA enrichment
  22. 2026-09-07 16:01 UTCEPSS rescore
  23. 2026-09-06 13:47 UTCEPSS rescore
  24. 2026-09-04 05:06 UTCEPSS rescore
  25. 2026-09-02 14:12 UTCEPSS rescore
Show 75 more
  1. 2026-09-01 13:54 UTCEPSS rescore
  2. 2026-09-01 04:40 UTCEPSS rescore
  3. 2026-08-31 00:13 UTCVendor advisory
  4. 2026-08-31 00:12 UTCGHSA enrichment
  5. 2026-08-30 20:10 UTCEG score recompute
  6. 2026-08-30 20:10 UTCVendor advisory
  7. 2026-08-30 20:09 UTCGHSA enrichment
  8. 2026-08-30 19:17 UTCEPSS rescore
  9. 2026-08-30 01:22 UTCEPSS rescore
  10. 2026-08-28 21:41 UTCEPSS rescore
  11. 2026-08-28 04:46 UTCEG score recompute
  12. 2026-08-28 04:46 UTCVendor advisory
  13. 2026-08-28 04:46 UTCGHSA enrichment
  14. 2026-08-27 14:25 UTCEPSS rescore
  15. 2026-08-26 14:46 UTCEPSS rescore
  16. 2026-08-25 13:49 UTCEPSS rescore
  17. 2026-08-25 06:15 UTCVendor advisory
  18. 2026-08-25 06:14 UTCGHSA enrichment
  19. 2026-08-25 02:03 UTCVendor advisory
  20. 2026-08-25 02:03 UTCGHSA enrichment
  21. 2026-08-24 21:59 UTCEG score recompute
  22. 2026-08-24 21:59 UTCVendor advisory
  23. 2026-08-24 21:59 UTCGHSA enrichment
  24. 2026-08-24 13:43 UTCEG score recompute
  25. 2026-08-24 13:43 UTCVendor advisory
  26. 2026-08-24 13:42 UTCGHSA enrichment
  27. 2026-08-24 04:37 UTCVendor advisory
  28. 2026-08-24 04:37 UTCGHSA enrichment
  29. 2026-08-24 00:04 UTCVendor advisory
  30. 2026-08-24 00:03 UTCGHSA enrichment
  31. 2026-08-23 19:58 UTCVendor advisory
  32. 2026-08-23 19:57 UTCGHSA enrichment
  33. 2026-08-23 15:53 UTCVendor advisory
  34. 2026-08-23 15:53 UTCGHSA enrichment
  35. 2026-08-23 11:51 UTCVendor advisory
  36. 2026-08-23 11:51 UTCGHSA enrichment
  37. 2026-08-23 07:49 UTCVendor advisory
  38. 2026-08-23 07:48 UTCGHSA enrichment
  39. 2026-08-23 02:44 UTCEG score recompute
  40. 2026-08-23 02:44 UTCVendor advisory
  41. 2026-08-23 02:43 UTCGHSA enrichment
  42. 2026-08-23 00:19 UTCEPSS rescore
  43. 2026-08-22 22:41 UTCVendor advisory
  44. 2026-08-22 22:40 UTCGHSA enrichment
  45. 2026-08-22 13:05 UTCEG score recompute
  46. 2026-08-22 13:05 UTCVendor advisory
  47. 2026-08-22 13:04 UTCGHSA enrichment
  48. 2026-08-21 23:49 UTCEPSS rescore
  49. 2026-08-21 22:19 UTCVendor advisory
  50. 2026-08-21 22:19 UTCGHSA enrichment
  51. 2026-08-21 18:15 UTCVendor advisory
  52. 2026-08-21 18:15 UTCGHSA enrichment
  53. 2026-08-21 14:13 UTCVendor advisory
  54. 2026-08-21 14:12 UTCGHSA enrichment
  55. 2026-08-21 09:16 UTCVendor advisory
  56. 2026-08-21 09:15 UTCGHSA enrichment
  57. 2026-08-21 05:13 UTCVendor advisory
  58. 2026-08-21 05:12 UTCGHSA enrichment
  59. 2026-08-21 00:20 UTCEG score recompute
  60. 2026-08-21 00:20 UTCVendor advisory
  61. 2026-08-21 00:19 UTCGHSA enrichment
  62. 2026-08-20 22:55 UTCEPSS rescore
  63. 2026-08-20 20:16 UTCVendor advisory
  64. 2026-08-20 20:16 UTCGHSA enrichment
  65. 2026-08-20 16:14 UTCVendor advisory
  66. 2026-08-20 16:14 UTCGHSA enrichment
  67. 2026-08-20 11:32 UTCVendor advisory
  68. 2026-08-20 11:32 UTCGHSA enrichment
  69. 2026-08-20 07:29 UTCEG score recompute
  70. 2026-08-20 07:29 UTCVendor advisory
  71. 2026-08-20 07:28 UTCGHSA enrichment
  72. 2026-08-19 17:04 UTCEPSS rescore
  73. 2026-08-19 15:04 UTCVendor advisory
  74. 2026-08-19 15:03 UTCGHSA enrichment
  75. 2026-08-19 11:01 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-53002?
CVE-2026-53002 is a critical vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in manglecontentlen() while at it.…
When was CVE-2026-53002 disclosed?
CVE-2026-53002 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53002 actively exploited?
CVE-2026-53002 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.9% of all scored CVEs.
What is the CVSS score of CVE-2026-53002?
CVE-2026-53002 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-53002?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53002, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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