5.5

CVE-2021-45267: gpac NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-45267DEBIAN-CVE-2021-45267
Published 22-12-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-45267 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in gpac. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.1% 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
0.67%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1
DSA-5411-1

Timeline

  1. 22-12-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An invalid memory address dereference vulnerability exists in gpac 1.1.0 via the svg_node_start function, which causes a segmentation fault and application crash.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.67%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

+0.04 pp

From 0.63% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.67%

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

Debian1 product
  • gpac< 1.0.1+dfsg1-4+deb11u2
Gpac1 product
Ubuntu1 product
  • gpacAll versions (No fix recorded)

3 vendors · 3 products

References

6 links