9.8

CVE-2024-11704: mozilla firefox Double Free

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2024-11704DEBIAN-CVE-2024-11704CGA-4qhr-qcvg-fq9r
Published 26-11-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-11704 is a critical (CVSS 9.8) Double Free vulnerability in mozilla firefox. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.91%
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 13 · Related 8
DLA-4044-1DLA-4045-1DSA-5858-1DSA-5861-1MGASA-2025-0045MGASA-2025-0048

Timeline

  1. 26-11-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.91%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

0.00 pp

From 0.91% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.91%

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< 133.0+build2-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs115All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
Mozilla3 products
  • firefox≥ unspecified, < 133 | < 128.7.0 | < 133.0
  • firefox_esr≥ unspecified, < 128.7
  • thunderbird≥ unspecified, < 133 | ≥ unspecified, < 128.7 | < 128.7.0 | ≥ 129.0, < 133.0
Chainguard2 products
  • firefox< 133.0-r0
  • firefox-esr< 133-r0
Debian2 products
  • firefox-esr< 128.7.0esr-1~deb12u1 | < 128.7.0esr-1
  • thunderbird< 1:128.7.0esr-1~deb12u1 | < 1:128.7.0esr-1
Wolfi1 product
  • firefox< 133.0-r0

5 vendors · 16 products

References

12 links
Show all 12 references