CVE-2026-74297

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 15, 2026

Last Modified

October 16, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
Patch available.
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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.

Patch Availability(15)

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)
  • every version up to 6.1.180-1: fixed in 6.1.180-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.96-1 (31 versions)
  • every version up to 6.12.100-1: fixed in 6.12.100-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (160 versions)
  • every version up to 7.1.5-1: fixed in 7.1.5-1
—

All Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 13× in last 7d / 81× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 225 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 125 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-18 03:14 UTCEG score recompute
  3. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-16 19:39 UTCEG score recompute
  5. 2026-10-16 19:39 UTCVendor advisory
  6. 2026-10-16 19:39 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-16 19:00 UTCEG score recompute
  8. 2026-10-16 19:00 UTCVendor advisory
  9. 2026-10-16 19:00 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  10. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-13 07:38 UTCEG score recompute
  15. 2026-10-13 07:38 UTCVendor advisory
  16. 2026-10-13 07:38 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-12 15:40 UTCEG score recompute
  19. 2026-10-11 19:26 UTCEG score recompute
  20. 2026-10-11 16:41 UTCEG score recompute
  21. 2026-10-11 14:00 UTCEG score recompute
  22. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 75 more
  1. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-06 22:30 UTCEG score recompute
  3. 2026-10-06 22:30 UTCVendor advisory
  4. 2026-10-06 22:30 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-06 09:11 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-05 20:35 UTCEG score recompute
  8. 2026-10-05 20:35 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-05 09:41 UTCEG score recompute
  11. 2026-10-05 09:41 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-04 21:58 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  14. 2026-10-04 06:25 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-03 19:32 UTCEG score recompute
  16. 2026-10-03 19:32 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-02 17:58 UTCEG score recompute
  19. 2026-10-02 17:58 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-02 07:05 UTCEG score recompute
  21. 2026-10-02 07:05 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-01 07:53 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  24. 2026-09-30 21:00 UTCEG score recompute
  25. 2026-09-30 21:00 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  26. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  27. 2026-09-29 00:02 UTCEG score recompute
  28. 2026-09-29 00:02 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  29. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  30. 2026-09-28 06:25 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  31. 2026-09-27 19:32 UTCEG score recompute
  32. 2026-09-27 19:32 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  33. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-09-27 08:28 UTCEG score recompute
  35. 2026-09-27 08:28 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  36. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  37. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  38. 2026-09-25 02:34 UTCEG score recompute
  39. 2026-09-25 02:34 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  40. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  41. 2026-09-24 07:26 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  42. 2026-09-23 20:33 UTCEG score recompute
  43. 2026-09-23 20:33 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  44. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-09-23 07:41 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  46. 2026-09-22 20:47 UTCEG score recompute
  47. 2026-09-22 20:47 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  48. 2026-09-22 06:59 UTCEG score recompute
  49. 2026-09-22 06:59 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  50. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-09-21 20:05 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  52. 2026-09-21 09:11 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-09-20 20:48 UTCEG score recompute
  54. 2026-09-20 20:48 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-09-20 09:54 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-19 21:58 UTCEG score recompute
  58. 2026-09-19 21:58 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-09-19 11:04 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  60. 2026-09-18 21:58 UTCEG score recompute
  61. 2026-09-18 21:58 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  62. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-09-18 09:07 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-09-17 22:10 UTCEG score recompute
  65. 2026-09-17 22:10 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-09-17 10:26 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  67. 2026-09-16 23:32 UTCEG score recompute
  68. 2026-09-16 23:32 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  70. 2026-09-16 06:14 UTCEG score recompute
  71. 2026-09-16 06:14 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  73. 2026-09-15 19:21 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-09-15 07:04 UTCEG score recompute
  75. 2026-09-15 07:04 UTCGHSA enrichmentGHSA-p4jx-gh49-76wv · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-74297?
CVE-2026-74297 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-74297 published?
The CVE record for CVE-2026-74297 was published on August 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 16, 2026; the record at its source may have been updated since.
Is CVE-2026-74297 actively exploited?
CVE-2026-74297 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74297?
CVE-2026-74297 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74297?
A fix for CVE-2026-74297 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74297 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-74297

Explore →

Is Your Infrastructure Affected by CVE-2026-74297?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.