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TI-2026-38352 Aliases CVE-2026-53266GHSA-xmhg-rr34-2chj

netfilter: bridge: make ebt_snat ARP rewrite writable

Priority CRITICAL 97Exploited in the wildCWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source address rewrite behind skb_ensure_writable(skb, 0). This is intentional: at the bridge ebtables hooks the Ethernet header is addressed through skb_mac_header()/eth_hdr(), while skb->data points at the Ethernet payload. Asking skb_ensure_writable() for ETH_HLEN bytes would check the payload, not the Ethernet header, and would reintroduce the small packet regression fixed by commit 63137bc5882a. However, the optional ARP sender hardware address rewrite is different. It writes through skb_store_bits() at an offset relative to skb->data: skb_store_bits(skb, sizeof(struct arphdr), info->mac, ETH_ALEN) skb_header_pointer() only safely reads the ARP header; it does not make the later sender hardware address range writable. If that range is still held in a nonlinear skb fragment backed by a splice-imported file page, skb_store_bits() maps the frag page and copies the new MAC address directly into it. Ensure the ARP SHA range is writable before reading the ARP header and before calling skb_store_bits().

Why it matters now

Exploitation Active In CISA KEV since 2026-09-18CISA due date 2026-09-21
EPSS 0.00934 60th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.5, 5.9, 5.10 +8Red Hat: 23 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.105.5, 5.9, 5.10Patch availableCNA
LinuxLinux5.10 and later5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13, 7.1Patch availableCNA
  • Linux VendorLinux Affected 5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.10 Fixed in 5.5, 5.9, 5.10 Patch available CNA
  • Linux VendorLinux Affected 5.10 and later Fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13, 7.1 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.10.259; 5.11 to before 5.15.210; 5.16 to before 6.1.176; 6.2 to before 6.6.143; 6.7 to before 6.12.94; 6.13 to before 6.18.36; 6.19 to before 7.0.13VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*7.1 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*7.1 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*7.1 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*7.1 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*7.1 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*7.1 rc6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.4.73 to before 5.5; 5.8.17 to before 5.9; 5.9.2 to before 5.10.259; 5.11 to before 5.15.210; 5.16 to before 6.1.176; 6.2 to before 6.6.143; 6.7 to before 6.12.94; 6.13 to before 6.18.36; 6.19 to before 7.0.13 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* Versions 7.1 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* Versions 7.1 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* Versions 7.1 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* Versions 7.1 rc6 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.5, 5.9, 5.10
  • Fix · CNA Linux (Linux) Fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13, 7.1

Red Hat 23 advisories

  • RHSA-2026:92629 Released 2026-10-29 · Red Hat rating Important
    kpatch-patch-5_14_0-284_134_1, kpatch-patch-5_14_0-284_148_1, kpatch-patch-5_14_0-284_158_1, kpatch-patch-5_14_0-284_172_1, and kpatch-patch-5_14_0-284_188_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) kpatch-patch-5_14_0-284_134_1-1-18.el9_2, kpatch-patch-5_14_0-284_148_1-1-16.el9_2, kpatch-patch-5_14_0-284_158_1-1-14.el9_2 +2
  • RHSA-2026:92062 Released 2026-10-28 · Red Hat rating Important
    kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_158_1, kpatch-patch-4_18_0-553_72_1, and kpatch-patch-4_18_0-553_85_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-553_109_1-1-14.el8_10, kpatch-patch-4_18_0-553_125_1-1-11.el8_10, kpatch-patch-4_18_0-553_158_1-1-3.el8_10 +2
  • RHSA-2026:92061 Released 2026-10-28 · Red Hat rating Important
    kpatch-patch-6_12_0-211_16_1 and kpatch-patch-6_12_0-211_49_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 10) kpatch-patch-6_12_0-211_16_1-2-11.el10_2, kpatch-patch-6_12_0-211_49_1-2-3.el10_2
Show 20 more Red Hat advisories
  • RHSA-2026:92063 Released 2026-10-28 · Red Hat rating Important
    kpatch-patch-4_18_0-477_107_1, kpatch-patch-4_18_0-477_120_1, kpatch-patch-4_18_0-477_130_1, kpatch-patch-4_18_0-477_143_1, and kpatch-patch-4_18_0-477_161_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) kpatch-patch-4_18_0-477_107_1-1-17.el8_8, kpatch-patch-4_18_0-477_120_1-1-16.el8_8, kpatch-patch-4_18_0-477_130_1-1-14.el8_8 +2
  • RHSA-2026:91650 Released 2026-10-28 · Red Hat rating Important
    kpatch-patch-5_14_0-687_10_1 and kpatch-patch-5_14_0-687_42_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-687_10_1-1-11.el9_8, kpatch-patch-5_14_0-687_42_1-1-2.el9_8
  • RHSA-2026:91638 Released 2026-10-28 · Red Hat rating Important
    kpatch-patch-5_14_0-570_116_1, kpatch-patch-5_14_0-570_135_1, kpatch-patch-5_14_0-570_39_1, kpatch-patch-5_14_0-570_66_1, and kpatch-patch-5_14_0-570_94_1 security update
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kpatch-patch-5_14_0-570_116_1-1-12.el9_6, kpatch-patch-5_14_0-570_135_1-1-3.el9_6, kpatch-patch-5_14_0-570_39_1-1-18.el9_6 +2
  • RHSA-2026:91639 Released 2026-10-28 · Red Hat rating Important
    kpatch-patch-5_14_0-427_100_1, kpatch-patch-5_14_0-427_113_1, kpatch-patch-5_14_0-427_126_1, kpatch-patch-5_14_0-427_146_1, and kpatch-patch-5_14_0-427_84_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) kpatch-patch-5_14_0-427_100_1-1-17.el9_4, kpatch-patch-5_14_0-427_113_1-1-15.el9_4, kpatch-patch-5_14_0-427_126_1-1-12.el9_4 +2
  • RHSA-2026:73732 Released 2026-09-30 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION) kernel-2.6.32-754.64.1.el6, kernel-abi-whitelists-2.6.32-754.64.1.el6, kernel-debug-2.6.32-754.64.1.el6 +7
    • Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) python-perf-2.6.32-754.64.1.el6
  • RHSA-2026:72059 Released 2026-09-25 · Red Hat rating Critical
    kernel security update
    • NVIDIA for RHEL 10 kernel-6.12.0-231.20.el10nv, kernel-64k-6.12.0-231.20.el10nv, kernel-64k-core-6.12.0-231.20.el10nv +38
  • RHSA-2026:71687 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.164.1.el7, kernel-3.10.0-1160.164.1.el7, kernel-abi-whitelists-3.10.0-1160.164.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.164.1.el7, kernel-tools-libs-devel-3.10.0-1160.164.1.el7
  • RHSA-2026:71657 Released 2026-09-24 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.164.1.rt56.1316.el7, kernel-rt-debug-3.10.0-1160.164.1.rt56.1316.el7, kernel-rt-debug-devel-3.10.0-1160.164.1.rt56.1316.el7 +4
  • RHSA-2026:71569 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) kernel-64k-debug-devel-5.14.0-427.152.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.152.1.el9_4, kernel-64k-devel-5.14.0-427.152.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool-7.3.0-427.152.1.el9_4, kernel-5.14.0-427.152.1.el9_4, kernel-64k-5.14.0-427.152.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt-5.14.0-427.152.1.el9_4, kernel-rt-core-5.14.0-427.152.1.el9_4, kernel-rt-debug-5.14.0-427.152.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt-5.14.0-427.152.1.el9_4, kernel-rt-core-5.14.0-427.152.1.el9_4, kernel-rt-debug-5.14.0-427.152.1.el9_4 +11
  • RHSA-2026:71601 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.194.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.194.1.el9_2, kernel-64k-devel-5.14.0-284.194.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.194.1.el9_2, kernel-5.14.0-284.194.1.el9_2, kernel-64k-5.14.0-284.194.1.el9_2 +29
  • RHSA-2026:71606 Released 2026-09-24 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-core-5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-debug-5.14.0-284.194.1.rt14.479.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-core-5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-debug-5.14.0-284.194.1.rt14.479.el9_2 +11
  • RHSA-2026:71565 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.209.1.el8_4, kernel-4.18.0-305.209.1.el8_4, kernel-abi-stablelists-4.18.0-305.209.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.209.1.el8_4, kernel-4.18.0-305.209.1.el8_4, kernel-abi-stablelists-4.18.0-305.209.1.el8_4 +19
  • RHSA-2026:71327 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.143.1.el9_6, libperf-5.14.0-570.143.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.143.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.143.1.el9_6, kernel-64k-devel-5.14.0-570.143.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.143.1.el9_6, kernel-64k-5.14.0-570.143.1.el9_6, kernel-64k-core-5.14.0-570.143.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.143.1.el9_6, kernel-rt-64k-5.14.0-570.143.1.el9_6, kernel-rt-64k-core-5.14.0-570.143.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.143.1.el9_6, kernel-rt-core-5.14.0-570.143.1.el9_6, kernel-rt-debug-5.14.0-570.143.1.el9_6 +11
  • RHSA-2026:71326 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.106.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.106.1.el10_0, kernel-64k-devel-6.12.0-55.106.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.106.1.el10_0, kernel-64k-6.12.0-55.106.1.el10_0, kernel-64k-core-6.12.0-55.106.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.106.1.el10_0, libperf-6.12.0-55.106.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.106.1.el10_0, kernel-rt-64k-6.12.0-55.106.1.el10_0, kernel-rt-64k-core-6.12.0-55.106.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.106.1.el10_0, kernel-rt-core-6.12.0-55.106.1.el10_0, kernel-rt-debug-6.12.0-55.106.1.el10_0 +11
  • RHSA-2026:71233 Released 2026-09-24 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.59.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.59.1.el10_2, kernel-64k-devel-6.12.0-211.59.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.59.1.el10_2, kernel-64k-6.12.0-211.59.1.el10_2, kernel-64k-core-6.12.0-211.59.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.59.1.el10_2, libperf-6.12.0-211.59.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.59.1.el10_2, kernel-rt-64k-6.12.0-211.59.1.el10_2, kernel-rt-64k-core-6.12.0-211.59.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.59.1.el10_2, kernel-rt-core-6.12.0-211.59.1.el10_2, kernel-rt-debug-6.12.0-211.59.1.el10_2 +9
  • RHSA-2026:71325 Released 2026-09-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.169.1.el8_8, kernel-4.18.0-477.169.1.el8_8, kernel-abi-stablelists-4.18.0-477.169.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.169.1.el8_8, kernel-4.18.0-477.169.1.el8_8, kernel-abi-stablelists-4.18.0-477.169.1.el8_8 +14
  • RHSA-2026:70797 Released 2026-09-23 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.217.1.el8_6, kernel-4.18.0-372.217.1.el8_6, kernel-abi-stablelists-4.18.0-372.217.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) bpftool-4.18.0-372.217.1.el8_6, kernel-4.18.0-372.217.1.el8_6, kernel-abi-stablelists-4.18.0-372.217.1.el8_6 +19
  • RHSA-2026:39083 Released 2026-07-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.143.1.el8_10, kernel-4.18.0-553.143.1.el8_10, kernel-abi-stablelists-4.18.0-553.143.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.143.1.el8_10
  • RHSA-2026:39082 Released 2026-07-14 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.143.1.rt7.484.el8_10, kernel-rt-core-4.18.0-553.143.1.rt7.484.el8_10, kernel-rt-debug-4.18.0-553.143.1.rt7.484.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.143.1.rt7.484.el8_10, kernel-rt-core-4.18.0-553.143.1.rt7.484.el8_10, kernel-rt-debug-4.18.0-553.143.1.rt7.484.el8_10 +7
  • RHSA-2026:36645 Released 2026-07-08 · Red Hat rating Important
    kernel update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.23.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.23.1.el9_8, kernel-64k-devel-5.14.0-687.23.1.el9_8 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.23.1.el9_8, kernel-64k-5.14.0-687.23.1.el9_8, kernel-64k-core-5.14.0-687.23.1.el9_8 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.23.1.el9_8, libperf-5.14.0-687.23.1.el9_8
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.23.1.el9_8, kernel-rt-64k-5.14.0-687.23.1.el9_8, kernel-rt-64k-core-5.14.0-687.23.1.el9_8 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.23.1.el9_8, kernel-rt-core-5.14.0-687.23.1.el9_8, kernel-rt-debug-5.14.0-687.23.1.el9_8 +9

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
NVIDIA for RHEL 10Fixed RHSA-2026:72059
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:71327
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:71233
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:36645
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:71601
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:71569
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:71326
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:71327
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:71233, RHSA-2026:92061
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:39083, RHSA-2026:92062
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:36645, RHSA-2026:91650
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2026:71565
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2026:70797
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2026:71325, RHSA-2026:92063
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:71601, RHSA-2026:92629
Red Hat Enterprise Linux BaseOS E4S (v.9.4)Fixed RHSA-2026:71569, RHSA-2026:91639
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:71326
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:71327, RHSA-2026:91638
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2026:71565
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)Fixed RHSA-2026:70797
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2026:71325
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:39083
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:71233
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:36645
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:71326
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2026:39082
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2026:39082
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:71233
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:36645
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:71606
Red Hat Enterprise Linux Real Time E4S (v.9.4)Fixed RHSA-2026:71569
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:71326
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:71327
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:71233
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:36645
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:71606
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)Fixed RHSA-2026:71569
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:71326
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:71327
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:71687
Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)Fixed RHSA-2026:73732
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2026:71687
Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)Fixed RHSA-2026:73732
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2026:71657

Timeline

  1. 2026-09-18 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2026-53266
  3. 2026-10-03 Alias added: GHSA-xmhg-rr34-2chj
  4. 2026-10-29 Affected versions changed · Red Hat
  5. 2026-10-29 Fix available: RHSA-2026:91639 · Red Hat
  6. 2026-10-29 Fix available: RHSA-2026:91650 · Red Hat
  7. 2026-10-29 Fix available: RHSA-2026:92063 · Red Hat
  8. 2026-10-29 Fix available: RHSA-2026:92061 · Red Hat
  9. 2026-10-30 Fix available: RHSA-2026:92629 · Red Hat
  10. 2026-10-30 Affected versions changed · Red Hat
  11. 2026-10-30 Fix available: RHSA-2026:92062 · Red Hat
  12. 2026-10-30 Fix available: RHSA-2026:91638 · Red Hat
  13. 2026-10-30 Affected versions changed · Red Hat

References

Patch 8

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
  • TI-2023-00252 Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel KEVCVSS 3.1HIGH 7.9
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences