CVE-2026-68476

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-15. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated 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: 1%CVSS: 9.8Exploit: 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: reload ip header after head reallocation

__ip_vs_get_out_rt() calls skb_ensure_writable() which may reallocate skb->head.

CVSS v3
9.8
EG Score
9.8(high)
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%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (5)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

ipvs: reload ip header after head reallocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e51687fc56c2e39ea6e9532925f1aabd4d529f61
generic

ipvs: reload ip header after head reallocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ad1e14710b360bda087ebf9fb82460eb5ef775de
generic

ipvs: reload ip header after head reallocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ac6ac3d35bfc0ade9d17d354c84e503a946ebdab
generic

ipvs: reload ip header after head reallocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a2f57827bf7c695b8c72dc4511cae8e86582369d
generic

ipvs: reload ip header after head reallocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3fb7edd2018bb1ad0a68157383d9b9dac33dd645

Vendor Advisories for CVE-2026-68476(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 48× in last 7d / 48× 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 06:19 UTCGHSA enrichment
  2. 2026-08-21 02:21 UTCEG score recompute
  3. 2026-08-21 02:21 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:23 UTCGHSA enrichment
  6. 2026-08-20 18:26 UTCGHSA enrichment
  7. 2026-08-20 14:29 UTCGHSA enrichment
  8. 2026-08-20 10:32 UTCGHSA enrichment
  9. 2026-08-20 06:35 UTCGHSA enrichment
  10. 2026-08-20 02:37 UTCGHSA enrichment
  11. 2026-08-19 22:38 UTCGHSA enrichment
  12. 2026-08-19 18:41 UTCEG score recompute
  13. 2026-08-19 18:41 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 14:43 UTCGHSA enrichment
  16. 2026-08-19 10:46 UTCGHSA enrichment
  17. 2026-08-19 06:49 UTCGHSA enrichment
  18. 2026-08-19 02:52 UTCGHSA enrichment
  19. 2026-08-18 22:53 UTCGHSA enrichment
  20. 2026-08-18 18:56 UTCGHSA enrichment
  21. 2026-08-18 14:58 UTCEG score recompute
  22. 2026-08-18 14:58 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-18 10:53 UTCGHSA enrichment
Show 23 more
  1. 2026-08-18 06:55 UTCGHSA enrichment
  2. 2026-08-18 02:58 UTCGHSA enrichment
  3. 2026-08-17 23:00 UTCGHSA enrichment
  4. 2026-08-17 19:03 UTCGHSA enrichment
  5. 2026-08-17 14:25 UTCEG score recompute
  6. 2026-08-17 14:25 UTCGHSA enrichment
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 10:27 UTCEG score recompute
  9. 2026-08-17 10:27 UTCGHSA enrichment
  10. 2026-08-17 06:30 UTCEG score recompute
  11. 2026-08-17 06:30 UTCGHSA enrichment
  12. 2026-08-17 06:01 UTCEG score recompute▲ 9.80
  13. 2026-08-17 06:01 UTCGHSA enrichment
  14. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  15. 2026-08-17 05:34 UTCEG score recompute
  16. 2026-08-17 05:34 UTCGHSA enrichment
  17. 2026-08-17 05:24 UTCMITRE cvelistV5
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-15 06:47 UTCGHSA enrichment
  21. 2026-08-15 06:23 UTCNVD update
  22. 2026-08-15 06:20 UTCEG score recompute
  23. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68476?
CVE-2026-68476 is a critical vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation ipvsgetoutrt() calls skbensurewritable() which may reallocate skb->head.
When was CVE-2026-68476 disclosed?
CVE-2026-68476 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68476 actively exploited?
CVE-2026-68476 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.6% of all scored CVEs.
What is the CVSS score of CVE-2026-68476?
CVE-2026-68476 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-68476?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68476, 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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