What is CVE-2020-24027?

CVE-2020-24027 is a critical-severity vulnerability in Live555 Liblivemedia, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-01-11.

How severe is CVE-2020-24027?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Live555 Liblivemedia

CVE-2020-24027

In Live Networks, Inc., liblivemedia version 20200625, there is a potential buffer overflow bug in the server handling of a RTSP "PLAY" command, when the command specifies seeking by absolute time.

Vulnerability class: Buffer Overflow

Published 2021-01-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Live555 Liblivemedia — versions 20200625

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.live555.com/liveMedia/public/changelog.txt (Vendor Advisory)
lists.live555.com/pipermail/live-devel/2020-July/021662.html (Exploit, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2020-24027?: CVE-2020-24027 is a critical-severity vulnerability in Live555 Liblivemedia, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-01-11.
How severe is CVE-2020-24027?: Critical severity. CVSS v3 base score is 9.8 out of 10.