HIGHCVSS v3.1 7.5Vulnerability
CVE-2026-106804
A stack-based buffer overflow exists in Kamailio v6.1.3 and v6.1.4 in the ims_qos_npn module. The w_rx_aar_register() function copies the attacker-controlled host field from the SIP `Via` header into a fixed 46-byte stack buffer without validating its length. An unauthenticated remote attacker can trigger the vulnerability with a crafted SIP `REGISTER` request, causing stack corruption and termination of the affected Kamailio instance, resulting in denial of service.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-11-02T20:58:11.011495+00:00
- Cvss severity
- HIGH
- Cvss score
- 7.5
- Retrieved at
- 2026-11-02T20:58:51+00:00
- Score
- 7.5
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-106804
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-11-02T20:53:23+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published at
- 2026-11-02T17:17:33.453
- Last modified
- 2026-11-02T19:34:23.993
Related Entities (3)
HAS_WEAKNESS (3)
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