Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.4, < 5.10.258 |
| Redhat | Enterprise Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0069813e6ca9309eca78022bcb3aeb1e9ef90a12Patch
- https://git.kernel.org/stable/c/085e31a811ef234ef8c3e219c4636dfebfe7e10fPatch
- https://git.kernel.org/stable/c/1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7Patch
- https://git.kernel.org/stable/c/38bdbc897c0d83a3e2b925a51b69420f1feba29aPatch
- https://git.kernel.org/stable/c/7bff2c8fe5c35ae58bf73104f53db3676e6e5d94Patch
- https://git.kernel.org/stable/c/7c66b368c6ff453f99cb39d84af93e908e51eef2Patch
- https://git.kernel.org/stable/c/aff0f28f5be803de2452ce702631c021fcd9ce8aPatch
- https://git.kernel.org/stable/c/f996edd7615e686ada141b7f3395025729ff8ccbPatch
- https://access.redhat.com/errata/RHSA-2026:45192
- https://access.redhat.com/errata/RHSA-2026:47010
- https://access.redhat.com/errata/RHSA-2026:47011
- https://access.redhat.com/errata/RHSA-2026:47017
- https://access.redhat.com/security/cve/CVE-2026-53006Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492363Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53006.jsonThird Party Advisory
FAQ
What is CVE-2026-53006?
CVE-2026-53006 is a vulnerability with a CVSS score of 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. Remo...
How severe is CVE-2026-53006?
CVE-2026-53006 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-53006?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux.