01 Record

CVE-2026-68141

net/af_iucv: fix NULL deref in afiucv_hs_callback_syn()

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

net/af_iucv: fix NULL deref in afiucv_hs_callback_syn()

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited 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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-19.

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

2026-08-10 11:59Z2 MO AGO

Last updated

2026-10-19 20:58Z9 DAYS AGO

Reserved

2026-07-30

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

0cd445e2b8ba266d2d097c62d26ed0b0a7e13d16a240154cd14330b353ad436b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3881ac441f642d56503818123446f7298442236b to < 6a1eb5b46c19073f8153b7e2c19b408cf353aaf1, 3881ac441f642d56503818123446f7298442236b to < c0b6e2ae90613c2fea7eaf3faa20985c6c2a1953, 3881ac441f642d56503818123446f7298442236b to < 07e21deb3664001995e0a456dd627ab7dbe127ec, 3881ac441f642d56503818123446f7298442236b to < 8bb111f87ded6acb9837ec9b45d6f02cda94c51f, 3881ac441f642d56503818123446f7298442236b to < 46453b16f38ec7147351f7447e2aec6ea330f7b3, 3881ac441f642d56503818123446f7298442236b to < 33736ff5e7c97d3348ce812e8bd2e125d840743c, 3881ac441f642d56503818123446f7298442236b to < 0e857185591fe79934427c9c0c1c31dc776be134, 3881ac441f642d56503818123446f7298442236b to < 47a5116e56a6b6fe1e909f244e39cd0fc26ceee4, 3.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/6a1eb5b46c19073f8153b7e2c19b408cf353aaf1
git.kernel.orghttps://git.kernel.org/stable/c/c0b6e2ae90613c2fea7eaf3faa20985c6c2a1953
git.kernel.orghttps://git.kernel.org/stable/c/07e21deb3664001995e0a456dd627ab7dbe127ec
git.kernel.orghttps://git.kernel.org/stable/c/8bb111f87ded6acb9837ec9b45d6f02cda94c51f
git.kernel.orghttps://git.kernel.org/stable/c/46453b16f38ec7147351f7447e2aec6ea330f7b3
git.kernel.orghttps://git.kernel.org/stable/c/33736ff5e7c97d3348ce812e8bd2e125d840743c
git.kernel.orghttps://git.kernel.org/stable/c/0e857185591fe79934427c9c0c1c31dc776be134
git.kernel.orghttps://git.kernel.org/stable/c/47a5116e56a6b6fe1e909f244e39cd0fc26ceee4

07 Fixed in

Debian 12

linux
Fixed in 6.1.187-1
linux-6.12
Fixed in 6.12.101-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.101-1

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

Debian 14

linux
Fixed in 7.1.6-1

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