# CVE-2026-90558: sngrep: sngrep through 1.8.4 contains stack buffer overflow vulnerabilities in SIP attribute formatting routines when header...

CVE-2026-90558 is fixed in sngrep on 1 platform by DEBIAN-CVE-2026-90558 (version 1.8.4-2), released September 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-90558
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0088
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 12, 2026

## Description

sngrep through 1.8.4 contains stack buffer overflow vulnerabilities in SIP attribute formatting routines when header values exceed the 255-byte buffer limit. Attackers can craft malicious SIP packets with oversized Call-ID, X-Call-ID, or other header fields to overflow stack buffers and cause crashes or execute arbitrary code during packet parsing and rendering.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | sngrep Debian 14 | 1.8.4-2 | [DEBIAN-CVE-2026-90558](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90558.md) | Sep 18, 2026 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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