01 Record

CVE-2026-74297

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

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

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

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 7.0% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Received. NVD last modified this record on 2026-10-16.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-08-15 05:58Z2 MO AGO

Last updated

2026-10-16 18:55Z12 DAYS AGO

Reserved

2026-08-15

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-1335Incorrect Bitwise Shift of IntegerBase
CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

07355f48f522fa8a008acd82fb13162e0689857b58d25440da05e895ec02f3e9

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxe126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < 9fff54929cc00849d738faa99f06c32399aeb026, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < b746f949c2ac2b041102836095d6d4a2ef21fa75, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < c1dbf52d24a8cb1aa56780ba51b72e7d495f258c, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < 6fc874fdfb366bfb11c62e6af9a831c8be59ddda, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < 42f3d2c8c18b92ea33e506a38b64f1a8986c2823, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < 4b87a2497276a72fd63028e7419abf0fb7ed837b, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < b732db02a2b04cde393638df19de6251ce62a74e, e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c to < d881d60223aac8fdc12b227d89c76e131e92a9cd, 3.11—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026
git.kernel.orghttps://git.kernel.org/stable/c/b746f949c2ac2b041102836095d6d4a2ef21fa75
git.kernel.orghttps://git.kernel.org/stable/c/c1dbf52d24a8cb1aa56780ba51b72e7d495f258c
git.kernel.orghttps://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda
git.kernel.orghttps://git.kernel.org/stable/c/42f3d2c8c18b92ea33e506a38b64f1a8986c2823
git.kernel.orghttps://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b
git.kernel.orghttps://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e
git.kernel.orghttps://git.kernel.org/stable/c/d881d60223aac8fdc12b227d89c76e131e92a9cd

07 Fixed in

Debian 12

linux
Fixed in 6.1.180-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.100-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.1.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.