Home/CVE/A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specif
CVE

CVE-2024-11704

A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specif

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.

CRITICAL · CVSS 9.8 EPSS 0.00271
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-415Double Free
▤

Affected Products & Versions

4
mozilla firefox< 128.7.0
mozilla firefox< 133.0
mozilla thunderbird< 128.7.0
mozilla thunderbird>= 129.0 and < 133.0
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Nov 2024 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

8
suse-csafSUSE-SU-2025:0391-1
suse-csafSUSE-SU-2025:0405-1
suse-csafopenSUSE-SU-2025:14731-1
suse-csafSUSE-SU-2025:0374-1
suse-csafopenSUSE-SU-2025:14727-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1899402Issue TrackingPermissions Required
https://www.mozilla.org/security/advisories/mfsa2024-63/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-67/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-09/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-10/Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html
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