🛡️ CVE-2023-27597 — opensips

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-20 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.8 and 3.2.5, when a specially crafted SIP message is processed by the function rewrite_ruri, a crash occurs due to a segmentation fault. This issue causes the server to crash. It affects configurations containing functions that make use of the affected code, such as the function setport. This issue has been fixed in version 3.1.8 and 3.2.5.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2023-27597 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2023-27597 is recorded against 1 package.

  • opensips (from 3.2.0 up to 3.2.5)

Timeline and source

Published on 15 March 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
github.com

CVE-2023-27597 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2023-03-15
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
opensips 3.2.0 3.2.5

Similar Threats

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