| Summary | 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. |
|---|---|
| Publication Date | April 9, 2026, 5:16 a.m. |
| Registration Date | April 15, 2026, 11:32 a.m. |
| Last Update | April 16, 2026, 12:58 a.m. |
| CVSS3.1 : HIGH | |
| スコア | 7.5 |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 不要 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | なし |
| 完全性への影響(I) | なし |
| 可用性への影響(A) | 高 |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:* | 5.8.8 | ||||
| cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:* | 6.0.0 | 6.0.6 | |||
| cpe:2.3:a:kamailio:kamailio:6.1.0:*:*:*:*:*:*:* | |||||