Vulnerability · Published Aug 18, 2021 · Assigned by mitre
CVE-2021-39283
Medium 5.5
In plain English
A medium-severity security flaw in the liblivemedia package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.9%top 41.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
liveMedia/FramedSource.cpp in Live555 through 1.08 allows an assertion failure and application exit via multiple SETUP and PLAY commands.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | liblivemedia | 2026.09.23-dfsg-1 | DEBIAN-CVE-2021-39283 |
| Ubuntu:26.10 | liblivemedia | no fix listed | UBUNTU-CVE-2021-39283 |