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CVE-2026-39863

nvd nist
Published: Apr 8, 2026Modified: Apr 15, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: security-advisories@github.com (Secondary)

Description

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted data packet sent over TCP. The issue impacts Kamailio instances having TCP or TLS listeners. This vulnerability is fixed in 5.1.1, 6.0.6, and 5.8.8.

Affected (3)

Products: Kamailio: Kamailio
Kamailio
1 product
Kamailio
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Kamailio
Kamailio
Before 5.8.8
Kamailio
From 6.0.0 to 6.0.6
Kamailio
Version 6.1.0

Related CWEs

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (1)

Source: security-advisories@github.com
Vendor Advisory

Timeline

No history available yet.