CVE-2026-53002

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH 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 — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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(high)
EPSS
27.1%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 30, 2026

Advisory Details (10)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat.
redhat

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

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

cve-details

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

Vendor Advisories for CVE-2026-53002(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 92× in last 7d / 104× 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 104 total refreshes for this CVE.

  1. 2026-07-07 01:53 UTCEG score recompute
  2. 2026-07-07 01:53 UTCGHSA enrichment
  3. 2026-07-06 21:46 UTCEG score recompute
  4. 2026-07-06 21:46 UTCGHSA enrichment
  5. 2026-07-06 17:42 UTCEG score recompute
  6. 2026-07-06 17:41 UTCGHSA enrichment
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 13:38 UTCEG score recompute
  10. 2026-07-06 13:37 UTCGHSA enrichment
  11. 2026-07-06 09:35 UTCEG score recompute
  12. 2026-07-06 09:35 UTCGHSA enrichment
  13. 2026-07-06 05:32 UTCEG score recompute
  14. 2026-07-06 05:31 UTCGHSA enrichment
  15. 2026-07-06 02:23 UTCEPSS rescore
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-06 01:29 UTCEG score recompute
  18. 2026-07-06 01:29 UTCGHSA enrichment
  19. 2026-07-05 21:27 UTCEG score recompute
  20. 2026-07-05 21:27 UTCGHSA enrichment
  21. 2026-07-05 17:25 UTCEG score recompute
  22. 2026-07-05 17:25 UTCGHSA enrichment
  23. 2026-07-05 13:23 UTCEG score recompute
  24. 2026-07-05 13:23 UTCGHSA enrichment
  25. 2026-07-05 09:21 UTCEG score recompute
Show 75 more
  1. 2026-07-05 09:21 UTCGHSA enrichment
  2. 2026-07-05 05:19 UTCEG score recompute
  3. 2026-07-05 05:19 UTCGHSA enrichment
  4. 2026-07-05 02:31 UTCEPSS rescore
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-05 01:17 UTCEG score recompute
  7. 2026-07-05 01:17 UTCGHSA enrichment
  8. 2026-07-04 21:16 UTCEG score recompute
  9. 2026-07-04 21:15 UTCGHSA enrichment
  10. 2026-07-04 17:11 UTCEG score recompute
  11. 2026-07-04 17:11 UTCGHSA enrichment
  12. 2026-07-04 13:07 UTCEG score recompute
  13. 2026-07-04 13:07 UTCGHSA enrichment
  14. 2026-07-04 09:04 UTCEG score recompute
  15. 2026-07-04 09:04 UTCGHSA enrichment
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-04 05:01 UTCEG score recompute
  18. 2026-07-04 05:01 UTCGHSA enrichment
  19. 2026-07-04 00:57 UTCEG score recompute
  20. 2026-07-04 00:57 UTCGHSA enrichment
  21. 2026-07-03 20:55 UTCEG score recompute
  22. 2026-07-03 20:55 UTCGHSA enrichment
  23. 2026-07-03 16:53 UTCEG score recompute
  24. 2026-07-03 16:53 UTCGHSA enrichment
  25. 2026-07-03 12:51 UTCEG score recompute
  26. 2026-07-03 12:51 UTCGHSA enrichment
  27. 2026-07-03 08:49 UTCEG score recompute
  28. 2026-07-03 08:49 UTCGHSA enrichment
  29. 2026-07-03 04:47 UTCEG score recompute
  30. 2026-07-03 04:47 UTCGHSA enrichment
  31. 2026-07-03 00:44 UTCEG score recompute
  32. 2026-07-03 00:44 UTCGHSA enrichment
  33. 2026-07-02 20:43 UTCEG score recompute
  34. 2026-07-02 20:42 UTCGHSA enrichment
  35. 2026-07-02 16:40 UTCEG score recompute
  36. 2026-07-02 16:40 UTCGHSA enrichment
  37. 2026-07-02 12:38 UTCEG score recompute
  38. 2026-07-02 12:38 UTCGHSA enrichment
  39. 2026-07-02 08:35 UTCEG score recompute
  40. 2026-07-02 08:35 UTCGHSA enrichment
  41. 2026-07-02 04:31 UTCEG score recompute
  42. 2026-07-02 04:31 UTCGHSA enrichment
  43. 2026-07-02 00:28 UTCEG score recompute
  44. 2026-07-02 00:28 UTCGHSA enrichment
  45. 2026-07-02 00:24 UTCGHSA enrichment
  46. 2026-07-01 20:21 UTCEG score recompute
  47. 2026-07-01 20:21 UTCGHSA enrichment
  48. 2026-07-01 16:19 UTCEG score recompute
  49. 2026-07-01 16:19 UTCGHSA enrichment
  50. 2026-07-01 15:07 UTCEPSS rescore
  51. 2026-07-01 12:17 UTCEG score recompute
  52. 2026-07-01 12:17 UTCGHSA enrichment
  53. 2026-07-01 08:12 UTCEG score recompute
  54. 2026-07-01 08:11 UTCGHSA enrichment
  55. 2026-07-01 04:09 UTCEG score recompute
  56. 2026-07-01 04:09 UTCGHSA enrichment
  57. 2026-07-01 00:08 UTCEG score recompute
  58. 2026-07-01 00:07 UTCGHSA enrichment
  59. 2026-06-30 23:22 UTCEPSS rescore
  60. 2026-06-30 20:03 UTCEG score recompute
  61. 2026-06-30 20:03 UTCGHSA enrichment
  62. 2026-06-30 16:01 UTCEG score recompute
  63. 2026-06-30 16:00 UTCGHSA enrichment
  64. 2026-06-30 11:55 UTCEG score recompute
  65. 2026-06-30 11:55 UTCGHSA enrichment
  66. 2026-06-30 07:52 UTCEG score recompute▲ 9.80
  67. 2026-06-30 07:52 UTCGHSA enrichment
  68. 2026-06-29 14:06 UTCEPSS rescore
  69. 2026-06-29 14:06 UTCEPSS rescore
  70. 2026-06-28 14:07 UTCEPSS rescore
  71. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  72. 2026-06-28 04:56 UTCEPSS rescore
  73. 2026-06-28 04:56 UTCEPSS rescore
  74. 2026-06-27 13:08 UTCEG score recompute
  75. 2026-06-27 13:08 UTCGHSA enrichment

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 June 30, 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 27.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-53002

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