CVE-2021-26712
HighPublic PoC
Published: 18 February 2021
Published
18 February 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0219
84.7th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-26712 is a high-severity an unspecified weakness vulnerability in Digium Certified Asterisk. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 15.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-13501
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
digium
asterisk
13.0.0 — 13.38.2 · 16.0.0 — 16.16.1 · 17.0.0 — 17.9.2
digium
certified asterisk
16.8
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.