Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-68141

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net/af_iucv: fix NULL deref in afiucv_hs_callback_syn() afiucv_hs_callback_syn() allocates the child socket with GFP_ATOMIC.

Published Aug 10, 2026EPSS 0.52%

Overview

CVE-2026-68141 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

net/af_iucv: fix NULL deref in afiucv_hs_callback_syn()

afiucv_hs_callback_syn() allocates the child socket with GFP_ATOMIC.

If the allocation fails, nsk is NULL.

The connection-refused path is entered when the listen state check

fails, the accept backlog is full, or nsk is NULL. The code

unconditionally calls iucv_sock_kill(nsk) in that path.

iucv_sock_kill() does not accept a NULL socket pointer and immediately

dereferences sk via sock_flag(sk, SOCK_ZAPPED). When nsk is NULL,

calling iucv_sock_kill(nsk) results in a NULL pointer dereference.

Only call iucv_sock_kill() when a child socket was successfully

allocated.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/07e21deb3664001995e0a456dd627ab7dbe127ecRefgit.kernel.org/stable/c/0e857185591fe79934427c9c0c1c31dc776be134Refgit.kernel.org/stable/c/33736ff5e7c97d3348ce812e8bd2e125d840743cRefgit.kernel.org/stable/c/46453b16f38ec7147351f7447e2aec6ea330f7b3Refgit.kernel.org/stable/c/47a5116e56a6b6fe1e909f244e39cd0fc26ceee4Refgit.kernel.org/stable/c/6a1eb5b46c19073f8153b7e2c19b408cf353aaf1Refgit.kernel.org/stable/c/8bb111f87ded6acb9837ec9b45d6f02cda94c51fRefgit.kernel.org/stable/c/c0b6e2ae90613c2fea7eaf3faa20985c6c2a1953

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68141?

CVE-2026-68141 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-68141?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-68141?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-68141?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68141 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999