CVE-2025-49832 — NULL Pointer Dereference in Asterisk
Severity
6.5MEDIUMNVD
EPSS
0.3%
top 50.38%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 1
Latest updateAug 3
Description
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versi…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6
Affected Packages4 packages
🔴Vulnerability Details
1OSV
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📋Vendor Advisories
1Debian▶
CVE-2025-49832: asterisk - Asterisk is an open source private branch exchange and telephony toolkit. In ver...↗2025