# CVE-2026-12505: Cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall

CVE-2026-12505 is fixed in 7 products on 1 platform, first by cifs-utils 2:7.4-1ubuntu0.26.04.3, released June 17, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-12505
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 16, 2026
- Weakness: Execution with Unnecessary Privileges
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-12505

## Description

This update for cifs-utils fixes the following issue  - CVE-2026-12505: cifs.upcall local privilege escalation via request_key-controlled namespace switch and NSS loading   (bsc#1267389).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | cifs-utils Debian 13.5 (trixie) | 2:7.4-1+deb13u1 | [DEBIAN-CVE-2026-12505](https://patchblox.com/security/data/fix/linux/debian-cve-2026-12505.md) | Jun 18, 2026 |
| Linux | cifs-utils Debian 14 | 2:7.8-1 | [DEBIAN-CVE-2026-12505](https://patchblox.com/security/data/fix/linux/debian-cve-2026-12505.md) | Jun 18, 2026 |
| Linux | cifs-utils RHEL 10 | 7.6-1.el10_2 | [RHSA-2026:32990](https://patchblox.com/security/data/fix/linux/rhsa-2026-32990.md) | Jun 30, 2026 |
| Linux | cifs-utils RHEL 8 | 0:7.0-5.el8_10 | [RHSA-2026:39575](https://patchblox.com/security/data/fix/linux/rhsa-2026-39575.md) | Jul 18, 2026 |
| Linux | cifs-utils RHEL 9 | 0:7.6-2.el9_8 | [RHSA-2026:39576](https://patchblox.com/security/data/fix/linux/rhsa-2026-39576.md) | Jul 18, 2026 |
| Linux | cifs-utils Ubuntu 22.04.1 LTS (jammy) | 2:6.14-1ubuntu0.6 | [cifs-utils 2:6.14-1ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-cifs-utils-2-6.14-1ubuntu0.6.md) | Jul 3, 2026 |
| Linux | cifs-utils Ubuntu 24.04.5 LTS (noble) | 2:7.0-2ubuntu0.5 | [cifs-utils 2:7.0-2ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-cifs-utils-2-7.0-2ubuntu0.5.md) | Jul 3, 2026 |
| Linux | cifs-utils Ubuntu 26.04.1 LTS (resolute) | 2:7.4-1ubuntu0.26.04.3 | [cifs-utils 2:7.4-1ubuntu0.26.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-cifs-utils-2-7.4-1ubuntu0.26.04.3.md) | Jun 17, 2026 |
| Linux | cifs-utils almalinux 8 | 7.0-5.el8_10 | [ALSA-2026:39575](https://patchblox.com/security/data/fix/linux/alsa-2026-39575.md) | Jul 15, 2026 |
| Linux | cifs-utils almalinux 9 | 7.6-2.el9_8 | [ALSA-2026:39576](https://patchblox.com/security/data/fix/linux/alsa-2026-39576.md) | Jul 15, 2026 |
| Linux | cifs-utils amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |
| Linux | cifs-utils ol 10 | 0:7.6-2.el10_2 | [ELSA-2026-32990](https://patchblox.com/security/data/fix/linux/elsa-2026-32990.md) | Jul 21, 2026 |
| Linux | cifs-utils ol 8 | 0:7.0-5.el8_10 | [ELSA-2026-39575](https://patchblox.com/security/data/fix/linux/elsa-2026-39575.md) | Jul 15, 2026 |
| Linux | cifs-utils ol 9 | 0:7.6-2.el9_8 | [ELSA-2026-39576](https://patchblox.com/security/data/fix/linux/elsa-2026-39576.md) | Jul 15, 2026 |
| Linux | cifs-utils rocky 10 | 0:7.6-1.el10_2 | [RLSA-2026:32990](https://patchblox.com/security/data/fix/linux/rlsa-2026-32990.md) | Jul 5, 2026 |
| Linux | cifs-utils rocky 8 | 0:7.0-5.el8_10 | [RLSA-2026:39575](https://patchblox.com/security/data/fix/linux/rlsa-2026-39575.md) | Jul 23, 2026 |
| Linux | cifs-utils rocky 9 | 0:7.6-2.el9_8 | [RLSA-2026:39576](https://patchblox.com/security/data/fix/linux/rlsa-2026-39576.md) | Jul 15, 2026 |
| Linux | cifs-utils sles 15.6 | 6.15-150400.3.21.1 | [SUSE-SU-2026:2699-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2699-1.md) | Jun 30, 2026 |
| Linux | cifs-utils sles 15.7 | 6.15-150400.3.21.1 | [SUSE-SU-2026:2699-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2699-1.md) | Jun 30, 2026 |
| Linux | cifs-utils-debuginfo amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |
| Linux | cifs-utils-debugsource amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |
| Linux | cifs-utils-devel RHEL 8 | 0:7.0-5.el8_10 | [RHSA-2026:39575](https://patchblox.com/security/data/fix/linux/rhsa-2026-39575.md) | Jul 18, 2026 |
| Linux | cifs-utils-devel RHEL 9 | 0:7.6-2.el9_8 | [RHSA-2026:39576](https://patchblox.com/security/data/fix/linux/rhsa-2026-39576.md) | Jul 18, 2026 |
| Linux | cifs-utils-devel almalinux 8 | 7.0-5.el8_10 | [ALSA-2026:39575](https://patchblox.com/security/data/fix/linux/alsa-2026-39575.md) | Jul 15, 2026 |
| Linux | cifs-utils-devel almalinux 9 | 7.6-2.el9_8 | [ALSA-2026:39576](https://patchblox.com/security/data/fix/linux/alsa-2026-39576.md) | Jul 15, 2026 |
| Linux | cifs-utils-devel amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |
| Linux | cifs-utils-devel ol 10 | 0:7.6-2.el10_2 | [ELSA-2026-32990](https://patchblox.com/security/data/fix/linux/elsa-2026-32990.md) | Jul 21, 2026 |
| Linux | cifs-utils-devel ol 8 | 0:7.0-5.el8_10 | [ELSA-2026-39575](https://patchblox.com/security/data/fix/linux/elsa-2026-39575.md) | Jul 15, 2026 |
| Linux | cifs-utils-devel ol 9 | 0:7.6-2.el9_8 | [ELSA-2026-39576](https://patchblox.com/security/data/fix/linux/elsa-2026-39576.md) | Jul 15, 2026 |
| Linux | cifs-utils-info amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |
| Linux | pam_cifscreds RHEL 8 | 0:7.0-5.el8_10 | [RHSA-2026:39575](https://patchblox.com/security/data/fix/linux/rhsa-2026-39575.md) | Jul 18, 2026 |
| Linux | pam_cifscreds RHEL 9 | 0:7.6-2.el9_8 | [RHSA-2026:39576](https://patchblox.com/security/data/fix/linux/rhsa-2026-39576.md) | Jul 18, 2026 |
| Linux | pam_cifscreds almalinux 8 | 7.0-5.el8_10 | [ALSA-2026:39575](https://patchblox.com/security/data/fix/linux/alsa-2026-39575.md) | Jul 15, 2026 |
| Linux | pam_cifscreds almalinux 9 | 7.6-2.el9_8 | [ALSA-2026:39576](https://patchblox.com/security/data/fix/linux/alsa-2026-39576.md) | Jul 15, 2026 |
| Linux | pam_cifscreds amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |
| Linux | pam_cifscreds ol 10 | 0:7.6-2.el10_2 | [ELSA-2026-32990](https://patchblox.com/security/data/fix/linux/elsa-2026-32990.md) | Jul 21, 2026 |
| Linux | pam_cifscreds ol 8 | 0:7.0-5.el8_10 | [ELSA-2026-39575](https://patchblox.com/security/data/fix/linux/elsa-2026-39575.md) | Jul 15, 2026 |
| Linux | pam_cifscreds ol 9 | 0:7.6-2.el9_8 | [ELSA-2026-39576](https://patchblox.com/security/data/fix/linux/elsa-2026-39576.md) | Jul 15, 2026 |
| Linux | pam_cifscreds-debuginfo amzn 2023 | 7.7-144.amzn2023 | [ALAS2023-2026-2030](https://patchblox.com/security/data/fix/linux/alas2023-2026-2030.md) | Aug 3, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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