Cyber Resilience

CVE-2024-0741

Memory Safety in Mozilla Firefox ≤ 122.0

Published
23 January 2024
Modified
30 May 2025
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.022 81th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2024-0741 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Mozilla Firefox. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 19% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-0741 is an out-of-bounds write vulnerability in the ANGLE graphics library that can corrupt memory and trigger a potentially exploitable crash. It affects Firefox versions prior to 122, Firefox ESR versions prior to 115.7, and Thunderbird versions prior to 115.7. The flaw carries a CVSS 3.1 score of 6.5 with network attack vector, low complexity, and high impact on availability.

An attacker can exploit the issue by serving specially crafted web content that triggers the out-of-bounds write when rendered in a vulnerable browser or email client. Successful exploitation requires user interaction such as visiting a malicious page or opening a malicious message, after which memory corruption may occur without further privileges.

Mozilla advisories MFSA2024-01 and MFSA2024-02, along with corresponding Debian LTS announcements, direct users to upgrade to the fixed releases Firefox 122, Firefox ESR 115.7, or Thunderbird 115.7. The referenced Mozilla bug report provides additional technical detail on the root cause and the applied correction.

The EPSS score has remained near 0.49 with no material rise from a low baseline after disclosure.

EU & UK References

Vulnerability Data

An out of bounds write in ANGLE could have allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

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CVE-2023-6861Same product: Debian Debian Linux
CVE-2023-37211Same product: Debian Debian Linux
CVE-2023-6858Same product: Debian Debian Linux
CVE-2024-2614Same product: Debian Debian Linux
CVE-2024-5696Same product: Debian Debian Linux

Affected Assets

mozilla
firefox
≤ 122.0
mozilla
firefox esr
≤ 115.7
mozilla
thunderbird
≤ 115.7
debian
debian linux
10.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation (including fuzzing and bounds checks) finds out-of-bounds write flaws before deployment.

Requiring documented secure-development standards and tools can mandate bounds-checked coding practices that avoid the weakness.

Input validation can structurally reject or sanitize data that would otherwise trigger an out-of-bounds write.

Memory-protection mechanisms limit the exploitability and blast radius of a successful out-of-bounds write.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
prevents

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development and acceptance can detect and prevent out-of-bounds write defects.

prevents

Secure development life cycle mandates practices that prevent out-of-bounds writes.

prevents

Application security requirements can specify bounds-checking and safe memory handling.

prevents

Secure architecture and engineering principles reduce the likelihood of buffer overflows.

prevents

Secure coding directly addresses out-of-bounds writes through language choice and coding standards.

prevents

Change management can enforce review gates that catch unsafe memory operations before deployment.

References