# DLA-4518-1: phpseclib security update

DLA-4518-1, released March 30, 2026, fixes 1 CVE in phpseclib (version 1.0.19-3+deb11u3). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dla-4518-1
- Platform: Linux
- Released: Mar 30, 2026
- Priority: High (Closes CVE-2023-52892, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2023-52892

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [phpseclib](https://patchblox.com/security/data/product/linux/phpseclib.md) | Debian 11.6 (bullseye) | 1.0.19-3+deb11u3 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-52892](https://patchblox.com/security/data/cve/CVE-2023-52892.md) | High | php-phpseclib3: In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fie... | 7.5 | 0.0038 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo