CVE-2026-80601

HIGHPre-NVD 8.88.8
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. 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:

batman-adv: gw: acquire ethernet header only after skb realloc

The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

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
17%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 29, 2026

Advisory Details (8)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6
generic

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2760b38222c8828b075802342fe3b91eb823d542

Vendor Advisories for CVE-2026-80601(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 12× in last 7d / 12× 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 20:00 UTCEG score recompute
  3. 2026-08-29 20:00 UTCGHSA enrichment
  4. 2026-08-29 07:27 UTCEG score recompute
  5. 2026-08-29 07:27 UTCGHSA enrichment
  6. 2026-08-29 06:37 UTCEG score recompute 8.80
  7. 2026-08-29 06:37 UTCGHSA enrichment
  8. 2026-08-29 06:33 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  9. 2026-08-28 21:42 UTCEPSS rescore
  10. 2026-08-28 08:20 UTCNVD update
  11. 2026-08-28 07:37 UTCEG score recompute
  12. 2026-08-28 07:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80601?
CVE-2026-80601 is a high vulnerability published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskbmaypull() called by batadvgetvid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an…
When was CVE-2026-80601 disclosed?
CVE-2026-80601 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80601 actively exploited?
CVE-2026-80601 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 82.8% of all scored CVEs.
What is the CVSS score of CVE-2026-80601?
CVE-2026-80601 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-80601?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80601, 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-2026-80601

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