What is CVE-2016-7550?

CVE-2016-7550 is a high-severity vulnerability in Digium Asterisk, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-05-23.

How severe is CVE-2016-7550?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Digium Asterisk

CVE-2016-7550

asterisk 13.10.0 is affected by: denial of service issues in asterisk. The impact is: cause a denial of service (remote).

Published 2019-05-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.020 (80.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.020 · change: -0.001

Affected products

Digium Asterisk — versions 13.10.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

downloads.asterisk.org/pub/security/AST-2016-006.html (Vendor Advisory)

Frequently asked questions

What is CVE-2016-7550?: CVE-2016-7550 is a high-severity vulnerability in Digium Asterisk, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-05-23.
How severe is CVE-2016-7550?: High severity. CVSS v3 base score is 7.5 out of 10.