CVE-2026-74469

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

sctp: prevent peer transport count overflow

sctp_assoc_add_peer() increments the association's 16-bit transport_count for every new unique peer. Adding the 65,536th transport wraps the count to zero.

SCTP sock_diag uses transport_count to reserve the INET_DIAG_PEERS payload, then copies one sockaddr_storage for every entry in transport_addr_list. After the wrap, a diagnostic dump reserves an empty payload and writes 8 MiB of peer addresses past the skb tail.

Reject a new unique peer when transport_count has reached U16_MAX. Perform the check after the existing-peer lookup so a duplicate address continues to return its existing transport at the limit.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.1%
EPSS %ILE
64th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 15, 2026

Last Modified

August 19, 2026

Advisory Details (5)

Auto-updated Aug 17, 2026
Patch available.
generic

sctp: prevent peer transport count overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bd0e9289e2642f6a5c54faad304ce0f41e926d22
generic

sctp: prevent peer transport count overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75
generic

sctp: prevent peer transport count overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/546221b86ceeba0d8fec92d46a0604bb7b62be07
generic

sctp: prevent peer transport count overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0
generic

sctp: prevent peer transport count overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/09e722030e8148ba4ed1e42c6b2ea57bda9f9895

Vendor Advisories for CVE-2026-74469(13)

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

Patch Availability(11)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatkernel-0:6.12.0-259.27.el10nv2026-09-30redhat
redhatkernel-0:4.18.0-305.209.1.el8_42026-09-24redhat
redhatkernel-0:3.10.0-1160.164.1.el72026-09-24redhat
redhatkernel-0:4.18.0-477.170.1.el8_82026-09-24redhat
redhatkernel-0:5.14.0-570.144.1.el9_62026-09-24redhat
redhatkernel-0:6.12.0-55.107.1.el10_02026-09-24redhat
redhatkernel-rt-0:3.10.0-1160.164.1.rt56.1316.el72026-09-24redhat
redhatkernel-0:4.18.0-372.218.1.el8_62026-09-24redhat
redhatkernel-0:5.14.0-284.194.1.el9_22026-09-24redhat
redhatkernel-rt-0:5.14.0-284.194.1.rt14.479.el9_22026-09-24redhat
redhatkernel-0:5.14.0-427.152.1.el9_42026-09-24redhat

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

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (56 versions)
  • every version up to 6.1.187-1: fixed in 6.1.187-1
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1
  • every version up to 6.12.107-1~deb12u1: fixed in 6.12.107-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (33 versions)
  • every version up to 6.12.105-1: fixed in 6.12.105-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (165 versions)
  • every version up to 7.1.8-1: fixed in 7.1.8-1
—

Data Freshness Timeline

(refreshed 28× in last 7d / 136× 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 225 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-74469?
CVE-2026-74469 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow sctpassocaddpeer() increments the association's 16-bit transportcount for every new unique peer. Adding the 65,536th transport wraps the count to zero. SCTP sockdiag uses transportcount…
When was CVE-2026-74469 disclosed?
CVE-2026-74469 was first published on August 15, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74469 actively exploited?
CVE-2026-74469 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (64th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74469?
CVE-2026-74469 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74469?
A fix for CVE-2026-74469 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74469 are linked in the Vendor Advisories panel on this page.

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