7.5

CVE-2021-41396: live555 Out-of-bounds Write

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-41396DEBIAN-CVE-2021-41396
Published 11-07-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-41396 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in live555. EPSS estimates a 1.37% chance of exploitation in the next 30 days, higher than 71.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.37%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 11-07-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a short time invokes the error-handling module, in which a heap-based buffer overflow happens. An attacker can leverage this to launch a DoS attack.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.37%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

+0.04 pp

From 1.33% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (lists.live555.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • liblivemediaAll versions (No fix recorded)
Live5551 product
Ubuntu1 product
  • liblivemediaAll versions (No fix recorded)

3 vendors · 3 products

References

5 links