01 Record

CVE-2026-74538

Bluetooth: ISO: lock sk in iso_connect_ind

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

Bluetooth: ISO: lock sk in iso_connect_ind

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-21.

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 12:27Z2 MO AGO

Last updated

2026-10-21 12:45Z8 DAYS AGO

Reserved

2026-08-15

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

962be0b47758a666919c068307dcfd7b1bd557ea2e292f3e5ddc3a0d51cf36ad

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux168d9bf9c7f01df71e6404cfff66d9c2a8e968fb to < 0e830354c120954ccb9ca15880245912722c4031, 168d9bf9c7f01df71e6404cfff66d9c2a8e968fb to < e8e9cff6d80eeec28dec4cf7cc18662986945391, 168d9bf9c7f01df71e6404cfff66d9c2a8e968fb to < 9bee7e476534f27e830658dad962d85da9edf6bf, 168d9bf9c7f01df71e6404cfff66d9c2a8e968fb to < 4311fd6f429065a8ba208660360a895627a00cf3, 489efc9ae36f164423f5fa7ace772a7ab8131cd8, 6.8.9 to < 6.9, 6.9—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/0e830354c120954ccb9ca15880245912722c4031
git.kernel.orghttps://git.kernel.org/stable/c/e8e9cff6d80eeec28dec4cf7cc18662986945391
git.kernel.orghttps://git.kernel.org/stable/c/9bee7e476534f27e830658dad962d85da9edf6bf
git.kernel.orghttps://git.kernel.org/stable/c/4311fd6f429065a8ba208660360a895627a00cf3

07 Fixed in

Debian 13

linux
No fix yet

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

Debian 14

linux
Fixed in 7.1.8-1

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