CVE-2026-74724

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-22. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: 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:

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp

Sashiko warns that local attacker can modify the packet while it is processed by IPVS. Some places read the IP ihl field multiple times which can cause out-of-bounds access. One such place is ip_vs_nat_icmp where we can write after the validated area.

Fix it by providing ciph argument just like it is done for IPv6 and use ciph->len as offset to the embedded transport header.

Modify some IPv4 header checks by reading the ihl field only once.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 25, 2026

Advisory Details (6)

Auto-updated Aug 25, 2026
No patch confirmed yet.
generic

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/646922a0379496154e8c8faca4f8e2fd9100cacc
generic

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/243d0187ec4c3837b9b0004f18d1068e46115760
generic

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a69a4b3fff5814d079beff9a1e9d369994b2ed47
generic

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/be65fa324640c7a95e30b146159a2be5cc73f22e
generic

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3c779b258c9c3c3567af68d4f45c2f751f35bd0e
generic

ipvs: avoid out-of-bounds write in ip_vs_nat_icmp - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3b8f79af0e98f27b932b0b416e9c52b692d31ff9

Vendor Advisories for CVE-2026-74724(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 23× in last 7d / 26× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 22:35 UTCGHSA enrichment
  3. 2026-08-29 11:36 UTCGHSA enrichment
  4. 2026-08-29 00:36 UTCEG score recompute
  5. 2026-08-29 00:36 UTCGHSA enrichment
  6. 2026-08-28 21:42 UTCEPSS rescore
  7. 2026-08-28 11:28 UTCGHSA enrichment
  8. 2026-08-28 00:24 UTCEG score recompute
  9. 2026-08-28 00:24 UTCGHSA enrichment
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-27 13:22 UTCGHSA enrichment
  12. 2026-08-27 02:23 UTCGHSA enrichment
  13. 2026-08-26 15:25 UTCGHSA enrichment
  14. 2026-08-26 04:24 UTCGHSA enrichment
  15. 2026-08-25 17:26 UTCEG score recompute
  16. 2026-08-25 17:26 UTCGHSA enrichment
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-25 06:29 UTCEG score recompute
  19. 2026-08-25 06:28 UTCGHSA enrichment
  20. 2026-08-25 05:55 UTCEG score recompute▲ 7.80
  21. 2026-08-25 05:55 UTCGHSA enrichment
  22. 2026-08-25 05:55 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  23. 2026-08-24 14:18 UTCEPSS rescore
  24. 2026-08-22 16:24 UTCNVD update
  25. 2026-08-22 15:37 UTCEG score recompute
Show 1 more
  1. 2026-08-22 15:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74724?
CVE-2026-74724 is a high vulnerability published on August 22, 2026. In the Linux kernel, the following vulnerability has been resolved: ipvs: avoid out-of-bounds write in ipvsnat_icmp Sashiko warns that local attacker can modify the packet while it is processed by IPVS. Some places read the IP ihl field multiple times which can cause out-of-bounds access. One such…
When was CVE-2026-74724 disclosed?
CVE-2026-74724 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74724 actively exploited?
CVE-2026-74724 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 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-74724?
CVE-2026-74724 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-74724?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74724, 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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