What is CVE-2021-39282?

CVE-2021-39282 is a high-severity vulnerability in Live555, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2021-08-18.

How severe is CVE-2021-39282?

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

Vulnerability in Live555

CVE-2021-39282

Live555 through 1.08 has a memory leak in AC3AudioStreamParser for AC3 files.

Published 2021-08-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Live555

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

lists.live555.com/pipermail/live-devel/2021-August/021970.html (Exploit, Mailing List, Vendor Advisory)
www.live555.com/liveMedia/public/changelog.txt

Frequently asked questions

What is CVE-2021-39282?: CVE-2021-39282 is a high-severity vulnerability in Live555, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2021-08-18.
How severe is CVE-2021-39282?: High severity. CVSS v3 base score is 7.5 out of 10.