5.5

CVE-2021-31259: gpac NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-31259
Published 19-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-31259 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in gpac. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 59.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.90%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 19-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

The gf_isom_cenc_get_default_info_internal function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.90%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

0.00 pp

From 0.90% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.90%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Gpac

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Gpac1 product
Ubuntu1 product
  • gpacAll versions (No fix recorded)

2 vendors · 2 products

References

4 links