VDB
CVE-2021-26712
CVE-2021-26712
PUBLISHED
CVSS 7.5 HIGH
Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.
EPSS 3.59% · 88.6th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
3.59%
88.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | asterisk | 0, 1:16.16.1~dfsg-2, 1:16.16.1~dfsg-4 |
| Ubuntu:25.10 | asterisk | 0, *, 1:22.2.0~dfsg+~cs6.15.60671435-2 |
| Ubuntu:24.04:LTS | asterisk | *, 1:20.5.0~dfsg+~cs6.13.40431414-1, 1:20.5.1~dfsg+~cs6.13.40431414-1 |
| Ubuntu:20.04:LTS | asterisk | 0, 1:16.2.1~dfsg-2build2, 1:16.2.1~dfsg-2build3 |
Timeline
- Feb 18, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Nov 7, 2022 EPSS Score
- Jan 9, 2023 EPSS Score
- Mar 12, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-26712 third-party-advisory
- http://packetstormsecurity.com/files/161473/Asterisk-Project-Security-Advisory-AST-2021-003.html third-party-advisory
- http://seclists.org/fulldisclosure/2021/Feb/59 third-party-advisory
- https://downloads.asterisk.org/pub/security/ third-party-advisory
- https://downloads.asterisk.org/pub/security/AST-2021-003.html third-party-advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29260 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-26712 third-party-advisory