CVE-2026-89537
SUNRPC: Reject short RFC 4121 MIC tokens in gss_krb5_verify_mic_v2
CVE-2026-89537 is fixed in 29 products on 1 platform, first by DEBIAN-CVE-2026-89537, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.1
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0073
54th percentile
SUNRPC: Reject short RFC 4121 MIC tokens in gss_krb5_verify_mic_v2 (bsc#1280713).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.90.1.150700.17.51.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-livepatch-6.12.114-139.210 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel-livepatch-SLE15-SP7_Update_24 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.90.1 | SUSE-SU-2026:5091-1 | Nov 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.115-2 | DEBIAN-CVE-2026-89537 | Sep 23, 2026 |
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-89537 | Sep 23, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.114-139.210.amzn2023 | ALAS2023-2026-3402 | Nov 10, 2026 |
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