8.8

CVE-2024-3854: mozilla firefox Out-of-bounds Read

CVSS: 8.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2024-3854DEBIAN-CVE-2024-3854CGA-fvpf-8fjw-84gg
Published 16-04-2024Last modified 01-08-2024
Open JSON

Vulnerability summary

CVE-2024-3854 is a high (CVSS 8.8) Out-of-bounds Read vulnerability in mozilla firefox. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.5% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.73%
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 34 · Related 12
DLA-3790-1DLA-3791-1DSA-5663-1DSA-5670-1MGASA-2024-0151MGASA-2024-0153

Timeline

  1. 16-04-2024
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

Description

In some code patterns the JIT incorrectly optimized switch statements and generated code with out-of-bounds-reads. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.73% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.73%

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

Ubuntu8 products
  • firefox< 125.0.2+build1-0ubuntu0.20.04.2
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Mozilla3 products
Debian2 products
  • firefox-esr< 115.10.0esr-1~deb12u1 | < 115.10.0esr-1
  • thunderbird< 1:115.10.1-1~deb12u1 | < 1:115.10.1-1
Chainguard1 product
  • firefox-esr< 115.10.0-r0

4 vendors · 14 products

References

13 links
Show all 13 references