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CVE-2026-53006

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change.

Published Jun 24, 2026CWE-416EPSS 0.39%

Overview

CVE-2026-53006 is a critical-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. 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:

ipv6: fix possible UAF in icmpv6_rcv()

Caching saddr and daddr before pskb_pull() is problematic

since skb->head can change.

Remove these temporary variables:

- We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr

when net_dbg_ratelimited() is called in the slow path.

- Avoid potential future misuse after pskb_pull() call.

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/0069813e6ca9309eca78022bcb3aeb1e9ef90a12Refgit.kernel.org/stable/c/085e31a811ef234ef8c3e219c4636dfebfe7e10fRefgit.kernel.org/stable/c/1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7Refgit.kernel.org/stable/c/38bdbc897c0d83a3e2b925a51b69420f1feba29aRefgit.kernel.org/stable/c/7bff2c8fe5c35ae58bf73104f53db3676e6e5d94Refgit.kernel.org/stable/c/7c66b368c6ff453f99cb39d84af93e908e51eef2Refgit.kernel.org/stable/c/aff0f28f5be803de2452ce702631c021fcd9ce8aRefgit.kernel.org/stable/c/f996edd7615e686ada141b7f3395025729ff8ccbRefaccess.redhat.com/errata/RHSA-2026:45192Refaccess.redhat.com/errata/RHSA-2026:47010

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53006?

CVE-2026-53006 is a critical-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-53006?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-53006?

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-2026-53006?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53006 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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