CVE-2026-74297

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 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:

RDMA/mlx5: Fix undefined shift of user RQ WQE size

set_rq_size() computes the RQ WQE size as "1 << rq_wqe_shift" based on the user-provided rq_wqe_shift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shift of 31 also overflows a signed integer, leading to undefined behavior.

Use check_shl_overflow() to compute the RQ WQE size and reject any invalid values.

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 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

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

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d881d60223aac8fdc12b227d89c76e131e92a9cd
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c1dbf52d24a8cb1aa56780ba51b72e7d495f258c
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b746f949c2ac2b041102836095d6d4a2ef21fa75
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b
generic

RDMA/mlx5: Fix undefined shift of user RQ WQE size - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/42f3d2c8c18b92ea33e506a38b64f1a8986c2823

Vendor Advisories for CVE-2026-74297(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 28× in last 7d / 28× 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. 2026-08-20 10:53 UTCGHSA enrichment
  2. 2026-08-19 23:59 UTCEG score recompute
  3. 2026-08-19 23:59 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 13:04 UTCGHSA enrichment
  6. 2026-08-19 02:04 UTCGHSA enrichment
  7. 2026-08-18 15:11 UTCEG score recompute
  8. 2026-08-18 15:11 UTCGHSA enrichment
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 04:11 UTCGHSA enrichment
  12. 2026-08-17 17:16 UTCEG score recompute
  13. 2026-08-17 17:16 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 06:22 UTCEG score recompute
  16. 2026-08-17 06:22 UTCGHSA enrichment
  17. 2026-08-17 05:56 UTCEG score recompute 7.80
  18. 2026-08-17 05:56 UTCGHSA enrichment
  19. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  20. 2026-08-17 05:27 UTCEG score recompute
  21. 2026-08-17 05:27 UTCGHSA enrichment
  22. 2026-08-17 05:25 UTCMITRE cvelistV5
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 02:15 UTCEPSS rescore
Show 3 more
  1. 2026-08-15 06:23 UTCNVD update
  2. 2026-08-15 06:16 UTCEG score recompute
  3. 2026-08-15 06:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74297?
CVE-2026-74297 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size setrqsize() computes the RQ WQE size as "1 << rqwqeshift" based on the user-provided rqwqeshift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A…
When was CVE-2026-74297 disclosed?
CVE-2026-74297 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-2026-74297 actively exploited?
CVE-2026-74297 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 97.0% of all scored CVEs.
What is the CVSS score of CVE-2026-74297?
CVE-2026-74297 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-74297?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74297, 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-2026-74297

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