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Fencer Vulns
high 8.8

CVE-2024-11699 json

Memory safety bugs present in Firefox 132, Firefox ESR 128.4, and Thunderbird 128.4.

published 2024-11-26 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-33964

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

Memory safety bugs present in Firefox 132, Firefox ESR 128.4, and Thunderbird 128.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

Patch / fix

  • Mozilla Firefox 133
  • Mozilla Firefox ESR 128.5
  • Mozilla Thunderbird 128.5, 133
  • mozilla firefox_esr 128.5
  • firefox-esr Debian 12 128.5.0esr-1~deb12u1
  • firefox-esr Debian 14, Debian 13 128.5.0esr-1
  • thunderbird Debian 12 1:128.5.0esr-1~deb12u1
  • thunderbird Debian 14, Debian 13 1:128.5.0esr-1

debian advisories DEBIAN-CVE-2024-11699

  • firefox Ubuntu 20.04 LTS 133.0+build2-0ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2024-11699

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • qemu-kvm RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-img RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-kvm-core RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-kvm-tools RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-pr-helper RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-kvm-common RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-guest-agent RHEL 10.2 18:10.1.0-16.el10_2
  • qemu-kvm-audio-pa RHEL 10.2 18:10.1.0-16.el10_2

red hat advisories RHSA-2026:18479RHSA-2024:10880RHSA-2024:10881RHSA-2024:10848RHSA-2024:10844RHSA-2024:10849

  • MozillaThunderbird SLE Workstation Extension 15 SP6, SLE Workstation Extension 15 SP5, SLE Module for Package Hub 15 SP6 +3 more 128.5.0-150200.8.191.1
  • MozillaFirefox SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +12 more 128.5.0-150200.152.161.1
  • MozillaFirefox SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 128.5.0-112.237.2

suse advisories SUSE-SU-2024:4148-1SUSE-SU-2024:4086-1SUSE-SU-2024:4074-1

  • MozillaFirefox openSUSE Tumbleweed 133.0.3-1.1
  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaThunderbird openSUSE Tumbleweed 128.5.0-1.1

opensuse advisories openSUSE-SU-2024:14583-1openSUSE-SU-2024:14572-1openSUSE-SU-2024:14533-1

  • qemu-kvm AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-img AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-kvm-core AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-kvm-tools AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-pr-helper AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-kvm-common AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-guest-agent AlmaLinux 10 18:10.1.0-16.el10_2.alma.1
  • qemu-kvm-audio-pa AlmaLinux 10 18:10.1.0-16.el10_2.alma.1

almalinux advisories ALSA-2026:18479ALSA-2024:10752ALSA-2024:10591ALSA-2024:10592ALSA-2024:10702

  • qemu-kvm Rocky Linux 10 8:10.1.0-16.el10_2
  • thunderbird Rocky Linux 8 128.5.0-1.el8_10
  • firefox Rocky Linux 8 128.5.1-1.el8_10

rocky linux advisories RLSA-2026:18479RLSA-2024:10591RLSA-2024:10752

  • thunderbird Alpine 3.23, Alpine 3.22, Alpine 3.21 +1 more 128.5.0-r0

alpine advisories ALPINE-CVE-2024-11699

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-11699 updated cvss 8.8

firefox: thunderbird: Memory safety bugs fixed in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5

  • Red Hat Enterprise Linux 6 firefox, thunderbird Red Hat Enterprise Linux 7 thunderbird
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 firefox-flatpak-container, thunderbird-flatpak-container Red Hat Enterprise Linux 10 firefox
    affected: no fix available
  • Red Hat Enterprise Linux AppStream (v. 8) firefox 128.5.1-1.el8_10, thunderbird 128.5.0-1.el8_10
    fixed: vendor fix RHSA-2024:10752
  • Red Hat Enterprise Linux AppStream (v. 9) firefox 128.5.1-1.el9_5, firefox-x11 128.5.1-1.el9_5, thunderbird 128.5.0-1.el9_5
    fixed: vendor fix RHSA-2024:10702
  • Red Hat Enterprise Linux AppStream (v. 10) qemu-img 10.1.0-16.el10_2, qemu-kvm 10.1.0-16.el10_2, qemu-kvm-core 10.1.0-16.el10_2, qemu-kvm-tools 10.1.0-16.el10_2, qemu-pr-helper 10.1.0-16.el10_2, qemu-kvm-common 10.1.0-16.el10_2, +13 more
    fixed: vendor fix RHSA-2026:18479
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox 128.5.1-1.el8_2, thunderbird 128.5.0-1.el8_2
    fixed: vendor fix RHSA-2024:10844
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox 128.5.1-1.el8_4, thunderbird 128.5.0-1.el8_4
    fixed: vendor fix RHSA-2024:10849
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox 128.5.1-1.el8_6, thunderbird 128.5.0-1.el8_6
    fixed: vendor fix RHSA-2024:10880
show 9 more
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox 128.5.1-1.el8_4, thunderbird 128.5.0-1.el8_4
    fixed: vendor fix RHSA-2024:10849
  • Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox 128.5.1-1.el8_6, thunderbird 128.5.0-1.el8_6
    fixed: vendor fix RHSA-2024:10880
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox 128.5.1-1.el9_0, thunderbird 128.5.0-1.el9_0
    fixed: vendor fix RHSA-2024:10743
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox 128.5.1-1.el8_8, thunderbird 128.5.0-1.el8_8
    fixed: vendor fix RHSA-2024:10848
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox 128.5.1-1.el9_2, firefox-x11 128.5.1-1.el9_2, thunderbird 128.5.0-1.el9_2
    fixed: vendor fix RHSA-2024:10745
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) firefox 128.5.1-1.el9_4, firefox-x11 128.5.1-1.el9_4, thunderbird 128.5.0-1.el9_4
    fixed: vendor fix RHSA-2024:10742
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox 128.5.1-1.el8_4, thunderbird 128.5.0-1.el8_4
    fixed: vendor fix RHSA-2024:10849
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox 128.5.1-1.el8_6, thunderbird 128.5.0-1.el8_6
    fixed: vendor fix RHSA-2024:10880
  • Red Hat Enterprise Linux Server (v. 7 ELS) firefox 128.5.1-1.el7_9
    fixed: vendor fix RHSA-2024:10881

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Mozilla Firefox
  • Mozilla Firefox ESR
  • Mozilla Thunderbird
  • mozilla firefox_esr

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.