NULL pointer dereference in Asterisk
CVE-2025-49832
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 i…
EPSS: 0.004 (34.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Asterisk — versions < 18.26.3, >= 20.00.0, < 20.15.1, >= 21.00.0, < 21.10.1
- Sangoma Asterisk
- Sangoma Certified_asterisk — versions 20.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-49832?
- CVE-2025-49832 is a medium-severity vulnerability in Asterisk, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2025-08-01.
- How severe is CVE-2025-49832?
- Medium severity. CVSS v3 base score is 6.5 out of 10.