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Review reviewCritical

CVE-2026-53006

Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8

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
9.8
EPSS
0.40%
32.2% percentile
CISA KEV
Not listed
Published
2026.06.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.40%
Technical severityCVSS 9.8

Vulnerability overview

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.

Affected product and versions

Product
Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8
Affected versions
>= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < 7bff2c8fe5c35ae58bf73104f53db3676e6e5d94, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < aff0f28f5be803de2452ce702631c021fcd9ce8a, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < 38bdbc897c0d83a3e2b925a51b69420f1feba29a, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < 0069813e6ca9309eca78022bcb3aeb1e9ef90a12, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < 1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < 7c66b368c6ff453f99cb39d84af93e908e51eef2, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < 085e31a811ef234ef8c3e219c4636dfebfe7e10f, >= 4b3418fba0fe819197e3359d5ddbef84ba2c59de < f996edd7615e686ada141b7f3395025729ff8ccb, >= 4.4, >= 4.4 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10, 8.0, 9.0, 10.0
Fixed versions
5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416, CWE-825