CVE-2026-74616

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-22. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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:

xdp: reject clones that overrun skb_shared_info tailroom

xdpf_clone() clones broadcast copies into a single page and sets frame_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that page like a normal XDP frame and expects the usual skb_shared_info tailroom at the end of the buffer.

The current check only rejects frames whose linear xdp_frame header, headroom, and packet data exceed PAGE_SIZE. A source frame backed by a larger allocation can still satisfy that check while extending into the clone's required shared-info area. When such a clone is converted back into an skb, build_skb_around() places skb_shared_info over live packet bytes and later writes can corrupt XDP return metadata.

Reject clones unless their linear area fits inside SKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already enforced by the XDP-to-skb conversion path.

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
41%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 25, 2026

Advisory Details (7)

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

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fab820f1691a9e26d9031f18aae1e9ce09078f92
generic

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0
generic

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ef4b7c7046d29a67090de15af0da0d1ae8d1b192
generic

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e48e8edbef2eb824201495daa5234560f632b23c
generic

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ba13763d667e008e185fedf592d53846a5b457d1
generic

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/685edea27ac68d08fe4dbd3de74b858d2ad8e830
generic

xdp: reject clones that overrun skb_shared_info tailroom - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/58408982fa39f9758124cec169f42854d6f98f35

Vendor Advisories for CVE-2026-74616(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 43× in last 7d / 46× 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 02:29 UTCEG score recompute
  2. 2026-08-30 02:29 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 22:15 UTCGHSA enrichment
  5. 2026-08-29 18:02 UTCGHSA enrichment
  6. 2026-08-29 13:44 UTCGHSA enrichment
  7. 2026-08-29 09:26 UTCGHSA enrichment
  8. 2026-08-29 05:11 UTCGHSA enrichment
  9. 2026-08-29 00:53 UTCEG score recompute
  10. 2026-08-29 00:53 UTCGHSA enrichment
  11. 2026-08-28 21:42 UTCEPSS rescore
  12. 2026-08-28 16:30 UTCGHSA enrichment
  13. 2026-08-28 11:12 UTCGHSA enrichment
  14. 2026-08-28 06:58 UTCGHSA enrichment
  15. 2026-08-28 02:42 UTCGHSA enrichment
  16. 2026-08-27 22:29 UTCGHSA enrichment
  17. 2026-08-27 18:16 UTCEG score recompute
  18. 2026-08-27 18:16 UTCGHSA enrichment
  19. 2026-08-27 14:25 UTCEPSS rescore
  20. 2026-08-27 13:39 UTCGHSA enrichment
  21. 2026-08-27 09:26 UTCGHSA enrichment
  22. 2026-08-27 05:12 UTCGHSA enrichment
  23. 2026-08-27 00:59 UTCGHSA enrichment
  24. 2026-08-26 20:45 UTCGHSA enrichment
  25. 2026-08-26 16:24 UTCEG score recompute
Show 21 more
  1. 2026-08-26 16:24 UTCGHSA enrichment
  2. 2026-08-26 14:47 UTCEPSS rescore
  3. 2026-08-26 12:06 UTCGHSA enrichment
  4. 2026-08-26 07:51 UTCGHSA enrichment
  5. 2026-08-26 03:37 UTCGHSA enrichment
  6. 2026-08-25 23:24 UTCGHSA enrichment
  7. 2026-08-25 19:10 UTCGHSA enrichment
  8. 2026-08-25 14:57 UTCEG score recompute
  9. 2026-08-25 14:57 UTCGHSA enrichment
  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-25 10:43 UTCEG score recompute
  12. 2026-08-25 10:43 UTCGHSA enrichment
  13. 2026-08-25 06:30 UTCEG score recompute
  14. 2026-08-25 06:30 UTCGHSA enrichment
  15. 2026-08-25 05:45 UTCEG score recompute▲ 9.80
  16. 2026-08-25 05:45 UTCGHSA enrichment
  17. 2026-08-25 05:45 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  18. 2026-08-24 14:18 UTCEPSS rescore
  19. 2026-08-22 16:24 UTCNVD update
  20. 2026-08-22 15:42 UTCEG score recompute
  21. 2026-08-22 15:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74616?
CVE-2026-74616 is a critical vulnerability published on August 22, 2026. In the Linux kernel, the following vulnerability has been resolved: xdp: reject clones that overrun skbsharedinfo tailroom xdpf_clone() clones broadcast copies into a single page and sets framesz to PAGESIZE. xdpbuildskbfromframe() later treats that page like a normal XDP frame and expects the…
When was CVE-2026-74616 disclosed?
CVE-2026-74616 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-2026-74616 actively exploited?
CVE-2026-74616 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 58.5% of all scored CVEs.
What is the CVSS score of CVE-2026-74616?
CVE-2026-74616 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-74616?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74616, 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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