CVE-2019-15639

main/translate.c in Sangoma Asterisk 13.28.0 and 16.5.0 allows a remote attacker to send a specific RTP packet during a call and cause a crash in a specific scenario.

Published: 2019-09-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-15639 is rated High Risk (69.1/100): CVSS High severity, with high exploitation likelihood (EPSS 21.92%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +15.86% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-15639

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 6.06% 21.92% +15.86%
2 2026-05-26 8.80% 6.06% -2.74%
3 2025-11-21 — 8.80% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-15639

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-15639

OS Trackers for CVE-2019-15639

vendor priority summary link
alpine high CVE-2019-15639: 1 source package rows (asterisk); 19 state rows across 9 repos (3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 9, open 10. https://security.alpinelinux.org/vuln/CVE-2019-15639
debian unimportant CVE-2019-15639 unimportant priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2019-15639
ubuntu medium CVE-2019-15639 medium priority: Ubuntu including 1 source packages (asterisk), 6 status rows across 6 suites (bionic, disco, eoan, trusty, upstream, xenial): not-affected 3, DNE 1, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2019-15639

Affected software / configurations for CVE-2019-15639

Vendor Product Version Raw CPE
digium asterisk >= 13.0.0, <= 13.28.0 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk >= 16.0.0, <= 16.5.0 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*

References for CVE-2019-15639

cvelogic Threat Intelligence