CVE-2026-74708

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:

xsk: validate launch-time metadata size

Launch-time metadata extends beyond the first 16 bytes of struct xsk_tx_metadata. Reject the request when the registered metadata area does not contain the complete field.

Snapshot the validated flags for the generic transmit path and use that snapshot for request and completion processing, avoiding inconsistent decisions if user space changes the flags concurrently.

Note that only xsk_skb_metadata is properly using the flags, __xsk_buff_get_metadata ignores them. Next commits address that.

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
3%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 25, 2026

Advisory Details (3)

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

xsk: validate launch-time metadata size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/439ce2dddf3d22129b9113a7881637256a35e936
generic

xsk: validate launch-time metadata size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bc63d47611c07b0d5d655fe1a590861931527920
generic

xsk: validate launch-time metadata size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/af511afa1d2977f384044df78d6fbf9fba653f7a

Vendor Advisories for CVE-2026-74708(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 24× in last 7d / 27× 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 19:37 UTCGHSA enrichment
  3. 2026-08-29 07:31 UTCEG score recompute
  4. 2026-08-29 07:31 UTCGHSA enrichment
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-28 19:25 UTCGHSA enrichment
  7. 2026-08-28 07:19 UTCGHSA enrichment
  8. 2026-08-27 19:06 UTCEG score recompute
  9. 2026-08-27 19:06 UTCGHSA enrichment
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-27 06:54 UTCGHSA enrichment
  12. 2026-08-26 18:46 UTCEG score recompute
  13. 2026-08-26 18:46 UTCGHSA enrichment
  14. 2026-08-26 14:47 UTCEPSS rescore
  15. 2026-08-26 06:41 UTCGHSA enrichment
  16. 2026-08-25 18:34 UTCEG score recompute
  17. 2026-08-25 18:34 UTCGHSA enrichment
  18. 2026-08-25 13:49 UTCEPSS rescore
  19. 2026-08-25 06:29 UTCEG score recompute
  20. 2026-08-25 06:29 UTCGHSA enrichment
  21. 2026-08-25 05:55 UTCEG score recompute▲ 7.80
  22. 2026-08-25 05:55 UTCGHSA enrichment
  23. 2026-08-25 05:55 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  24. 2026-08-24 14:18 UTCEPSS rescore
  25. 2026-08-22 16:24 UTCNVD update
Show 2 more
  1. 2026-08-22 15:38 UTCEG score recompute
  2. 2026-08-22 15:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74708?
CVE-2026-74708 is a high vulnerability published on August 22, 2026. In the Linux kernel, the following vulnerability has been resolved: xsk: validate launch-time metadata size Launch-time metadata extends beyond the first 16 bytes of struct xsktxmetadata. Reject the request when the registered metadata area does not contain the complete field. Snapshot the…
When was CVE-2026-74708 disclosed?
CVE-2026-74708 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-2026-74708 actively exploited?
CVE-2026-74708 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 97.3% of all scored CVEs.
What is the CVSS score of CVE-2026-74708?
CVE-2026-74708 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-74708?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74708, 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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