CVE-2024-0751

23

FAUCET Score

CVE-2024-0751 describes a high-severity privilege escalation vulnerability affecting Mozilla Firefox, Firefox ESR, and Thunderbird versions prior to 122 and 115.7 respectively, where a malicious devtools extension could gain elevated privileges. With a CVSS score of 8.8 (HIGH), this vulnerability can be exploited remotely with user interaction, leading to high impacts on confidentiality, integrity, and availability. While no active exploitation, public exploits, or significant community discussion have been observed, the potential for severe impact necessitates prompt patching.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 122.0CPE matchmatch criteria	cpe:2.3:a:mozilla:firefox::::::::
		< 115.7CPE matchmatch criteria	cpe:2.3:a:mozilla:firefox_esr::::::::
		< 115.7CPE matchmatch criteria	cpe:2.3:a:mozilla:thunderbird::::::::
		10.0CPE matchmatch criteria	cpe:2.3:o:debian:debian_linux:10.0:::::::*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

2.8

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.63%

Probability of exploitation in next 30 days

EPSS Percentile

46.6%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0063 is in the 48th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (27)

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: thunderbird-0:115.7.0-1.el9_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:115.7.0-1.el7_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:115.7.0-1.el7_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: firefox-0:115.7.0-1.el8_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: thunderbird-0:115.7.0-1.el8_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: firefox-0:115.7.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: thunderbird-0:115.7.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: firefox-0:115.7.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: thunderbird-0:115.7.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: firefox-0:115.7.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: thunderbird-0:115.7.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: firefox-0:115.7.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: thunderbird-0:115.7.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: firefox-0:115.7.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: thunderbird-0:115.7.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: firefox-0:115.7.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: thunderbird-0:115.7.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: firefox-0:115.7.0-1.el8_6

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: thunderbird-0:115.7.0-1.el8_6

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: firefox-0:115.7.0-1.el8_8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: thunderbird-0:115.7.0-1.el8_8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: thunderbird-0:115.7.0-1.el9_3

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: firefox-0:115.7.0-1.el9_3

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: firefox-0:115.7.0-1.el9_0

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: thunderbird-0:115.7.0-1.el9_0

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: firefox-0:115.7.0-1.el9_2

mozillavendor investigatingvia nvd_reference

Vendor Advisories (2)

redhatCVE-2024-0751Moderate

Mozilla: Privilege escalation through devtools

microsoft2024-Jan/CVE-2024-0751Important

A malicious devtools extension could have been used to escalate privileges. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

References

bugzilla.mozilla.org / show_bug.cgi

Issue TrackingPermissions Required

lists.debian.org / debian-lts-announce/2024/01/msg00015.html

Mailing ListThird Party Advisory

lists.debian.org / debian-lts-announce/2024/01/msg00022.html

Mailing ListThird Party Advisory

mozilla.org / security/advisories/mfsa2024-01

Release NotesVendor Advisory

mozilla.org / security/advisories/mfsa2024-02

Release NotesVendor Advisory

mozilla.org / security/advisories/mfsa2024-04

Release NotesVendor Advisory