6.5

CVE-2024-4774: mozilla firefox

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-4774CGA-844p-pwrg-5wwrCGA-j4hq-5288-gcg5
Published 14-05-2024Last modified 28-03-2025
Open JSON

Vulnerability summary

CVE-2024-4774 is a medium (CVSS 6.5) vulnerability in mozilla firefox. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.7% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.37%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 4
OPENSUSE-SU-2024:13980-1OPENSUSE-SU-2024:14572-1USN-6779-1CGA-WQ83-46G7-9334

Timeline

  1. 14-05-2024
    PublishedVulnerability first disclosed.
  2. 28-03-2025
    Last modifiedVulnerability information updated.

Description

The `ShmemCharMapHashEntry()` code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

0.00 pp

From 0.37% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu7 products
  • firefox< 126.0+build2-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Chainguard1 product
  • firefox-esr< 126-r0
Mozilla1 product
  • firefox≥ unspecified, < 126 | < 126.0

3 vendors · 9 products

References

6 links