Out-of-bounds Read Affecting kamailio package, versions <6.0.1-1+deb13u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.3% (22nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-KAMAILIO-19434980
  • published31 Aug 2026
  • disclosed8 Apr 2026

Introduced: 8 Apr 2026

CVE-2026-39864  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Echo:latest kamailio to version 6.0.1-1+deb13u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kamailio package and not the kamailio package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.0.5 and 5.8.7, an out-of-bounds read in the auth module of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted SIP packet if a successful user authentication without a database backend is followed by additional user identity checks. This vulnerability is fixed in 6.0.5 and 5.8.7.

CVSS Base Scores

version 3.1