CVE-2026-74469

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH 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 — 5 sources updated 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: 0%CVSS: 8.8Exploit: None knownExposed: 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:

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
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 19, 2026

Advisory Details (5)

Auto-updated Aug 17, 2026
No patch confirmed yet.
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(1)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 32× 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.

  1. 2026-08-21 06:55 UTCEG score recompute
  2. 2026-08-21 06:54 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 18:28 UTCGHSA enrichment
  5. 2026-08-20 06:03 UTCGHSA enrichment
  6. 2026-08-19 17:36 UTCEG score recompute
  7. 2026-08-19 17:36 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 16:45 UTCEG score recompute
  10. 2026-08-19 16:45 UTCGHSA enrichment
  11. 2026-08-19 08:13 UTCGHSA enrichment
  12. 2026-08-18 19:47 UTCEG score recompute
  13. 2026-08-18 19:47 UTCGHSA enrichment
  14. 2026-08-18 13:49 UTCEPSS rescore
  15. 2026-08-18 13:49 UTCEPSS rescore
  16. 2026-08-18 07:21 UTCGHSA enrichment
  17. 2026-08-17 18:55 UTCEG score recompute
  18. 2026-08-17 18:55 UTCGHSA enrichment
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 06:25 UTCEG score recompute
  21. 2026-08-17 06:25 UTCGHSA enrichment
  22. 2026-08-17 05:55 UTCEG score recompute▲ 8.80
  23. 2026-08-17 05:55 UTCGHSA enrichment
  24. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  25. 2026-08-17 05:25 UTCEG score recompute
Show 7 more
  1. 2026-08-17 05:25 UTCGHSA enrichment
  2. 2026-08-17 05:25 UTCMITRE cvelistV5
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 14:56 UTCEPSS rescore
  5. 2026-08-15 13:27 UTCNVD update
  6. 2026-08-15 12:40 UTCEG score recompute
  7. 2026-08-15 12:37 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database 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 0% probability of exploitation in the next 30 days, which ranks it in the top 61.2% of all scored CVEs.
What is the CVSS score of CVE-2026-74469?
CVE-2026-74469 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-74469?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74469, 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.

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