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CVE-2024-26950

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device b…

Published May 1, 2024CWE-476EPSS 0.24%

Overview

CVE-2024-26950 is a high-severity vulnerability. It was published on May 1, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

wireguard: netlink: access device through ctx instead of peer

The previous commit fixed a bug that led to a NULL peer->device being

dereferenced. It's actually easier and faster performance-wise to

instead get the device from ctx->wg. This semantically makes more sense

too, since ctx->wg->peer_allowedips.seq is compared with

ctx->allowedips_seq, basing them both in ctx. This also acts as a

defence in depth provision against freed peers.

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/09c3fa70f65175861ca948cb2f0f791e666c90e5Refgit.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068Refgit.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5Refgit.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86fRefgit.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996Refgit.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37Refgit.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47Refgit.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5Refgit.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068Refgit.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26950?

CVE-2024-26950 is a high-severity vulnerability. It was published on May 1, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26950?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26950?

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-2024-26950?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26950 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.

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