CVE-2024-4774

mediumpriority · track · 26EPSS 0.004 · 31 %ileDEEUNLUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (31st) EPSS

CVSS 6.5 · medium

Is it mine?

27 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

The `ShmemCharMapHashEntry()` code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 2.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lsecondaryexploitability 3.9 · impact 2.5

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-758US

affected products (27)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Atlassian Confluence <7.19.26-7.19.28 (LTS)) >all versionscert_bundDE
Atlassian Confluence <8.5.11-8.5.16 (LTS) >all versionscert_bundDE
Atlassian Confluence <8.9.3-8.9.7 >all versionscert_bundDE
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
IGEL OSall versionscert_bundDEcpe:/o:igel:os:-
Mozilla Firefox <126all versionscert_bundDE
Mozilla Firefox ESR <115.11all versionscert_bundDE
Mozilla Thunderbird <115.11all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Xerox FreeFlow Print Serverall versionscert_bundDEcpe:/a:xerox:freeflow_print_server:-
Xerox FreeFlow Print Server v9all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:v9
Atlassian Confluence< 7.19.26-7.19.28 (LTS)) >cert_bundDE
Atlassian Confluence< 8.5.11-8.5.16 (LTS) >cert_bundDE

showing 20 of 27

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2024-0218Kwetsbaarheden verholpen in Mozilla Firefox en ThunderbirdNL2024-05-15csaf · ncsc_nlNL
Mozilla heeft kwetsbaarheden verholpen in Firefox en Thunderbird
WID-SEC-W-2024-1151Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere SchwachstellenDeutsch2024-05-14csaf · cert_bundDE
Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen oder Cross-Site-Scripting (XSS)-Angriffe durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl NVD CVE.org MITRE

published 2024-05-14modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan