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Critical 9.8Published Jun 24, 2026
CVE-2026-53006ipv6: fix possible UAF in icmpv6_rcv()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-825
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before 7bff2c8fe5c35ae58bf73104f53db3676e6e5d94; from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before aff0f28f5be803de2452ce702631c021fcd9ce8a; from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before 38bdbc897c0d83a3e2b925a51b69420f1feba29a; from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before 0069813e6ca9309eca78022bcb3aeb1e9ef90a12; 4b3418fba0fe819197e3359d5ddbef84ba2c59de builds before 1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7; from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before 7c66b368c6ff453f99cb39d84af93e908e51eef2; from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before 085e31a811ef234ef8c3e219c4636dfebfe7e10f; from 4b3418fba0fe819197e3359d5ddbef84ba2c59de before f996edd7615e686ada141b7f3395025729ff8ccb | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:6.12.0-211.40.1.el10_2 not affected | CISA ADP |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:6.12.0-55.103.1.el10_0 not affected | CISA ADP |
from 0:4.18.0-305.206.1.el8_4 not affected | CISA ADP | |
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On redhat:rhel_eus_long_life | from 0:4.18.0-305.206.1.el8_4 not affected | CISA ADP |
from 0:4.18.0-477.163.1.el8_8 not affected | CISA ADP | |
from 0:4.18.0-477.163.1.el8_8 not affected | CISA ADP | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:5.14.0-570.138.1.el9_6 not affected | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.4 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 8.0; 9.0; 10.0 | NVD |
References
- https://git.kernel.org/stable/c/7bff2c8fe5c35ae58bf73104f53db3676e6e5d94patch
- https://git.kernel.org/stable/c/aff0f28f5be803de2452ce702631c021fcd9ce8apatch
- https://git.kernel.org/stable/c/38bdbc897c0d83a3e2b925a51b69420f1feba29apatch
- https://git.kernel.org/stable/c/0069813e6ca9309eca78022bcb3aeb1e9ef90a12patch
- https://git.kernel.org/stable/c/1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7patch
- https://git.kernel.org/stable/c/7c66b368c6ff453f99cb39d84af93e908e51eef2patch
- https://git.kernel.org/stable/c/085e31a811ef234ef8c3e219c4636dfebfe7e10fpatch
- 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/errata/RHSA-2026:61932
- https://access.redhat.com/errata/RHSA-2026:62568
- https://access.redhat.com/errata/RHSA-2026:64767
- https://access.redhat.com/errata/RHSA-2026:65710
- https://access.redhat.com/errata/RHSA-2026:65711
- https://access.redhat.com/errata/RHSA-2026:65712
- https://access.redhat.com/errata/RHSA-2026:67721
- https://access.redhat.com/errata/RHSA-2026:67723
- https://access.redhat.com/security/cve/CVE-2026-53006third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492363third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53006.jsonthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.