6.5

CVE-2020-35964: ffmpeg Out-of-bounds Write

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2020-35964DEBIAN-CVE-2020-35964
Published 03-01-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-35964 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in ffmpeg. EPSS estimates a 1.54% chance of exploitation in the next 30 days, higher than 74.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.54%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:10754-1

Timeline

  1. 03-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-bounds write because of incorrect extradata packing.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.54%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

+0.02 pp

From 1.53% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.chromium.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • ffmpeg< 7:4.3.1-6
Ffmpeg1 product
Ubuntu1 product
  • ffmpeg< 7:4.2.7-0ubuntu0.1

3 vendors · 3 products

References

6 links