# RLSA-2026:46397: libreswan security update

RLSA-2026:46397, released July 27, 2026, fixes 4 CVEs in libreswan (version 0:4.15-10.el9_8). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rlsa-2026-46397
- Platform: Linux
- Released: Jul 27, 2026
- Priority: High (Closes CVE-2026-12413, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://errata.rockylinux.org/RLSA-2026:46397

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libreswan](https://patchblox.com/security/data/product/linux/libreswan.md) | rocky 9 | 0:4.15-10.el9_8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-12413](https://patchblox.com/security/data/cve/CVE-2026-12413.md) | High | IKEv2 Denial of Service via malformed fragmentation | 7.5 | 0.0060 |  |
| [CVE-2026-14957](https://patchblox.com/security/data/cve/CVE-2026-14957.md) | High | FIPS mode assertion failure via malicious CERT payload | 7.5 | 0.0047 |  |
| [CVE-2026-50721](https://patchblox.com/security/data/cve/CVE-2026-50721.md) | High | IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload | 8.1 | 0.0039 |  |
| [CVE-2026-50722](https://patchblox.com/security/data/cve/CVE-2026-50722.md) | High | IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload | 8.1 | 0.0035 |  |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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