Out-of-Bounds Read Vulnerability in Kamailio by Kamailio Solutions
CVE-2026-82608

5.3MEDIUM

Key Information:

Vendor

Kamailio Solutions

Status
Kamailio
Vendor
CVE Published:
31 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82608?

A vulnerability affecting Kamailio versions up to 5.5.0 and 6.0.7 has been reported where an out-of-bounds read can occur due to improper handling in the get_4bytes function of the AVP Handler component. This vulnerability allows attackers to exploit the flaw remotely, potentially leading to unauthorized access or exposure of sensitive information. Given that version 5.5.0 is no longer maintained, users are advised to upgrade to newer versions and apply the patch identified as abb5d60af6eefbd367bf6588c5589566b090e272 to mitigate risks associated with this vulnerability.

Affected Version(s)

Kamailio 5.0

Kamailio 5.1

Kamailio 5.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-82608 - Proof of Concept

References

https://vuldb.com/vuln/397109
vdb-entrytechnical-description
https://vuldb.com/vuln/397109/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-82608
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hancl (VulDB User)
VulDB CNA Team
.