Cyber Resilience

CVE-2024-7526

Mozilla Firefox Esr ≤ 115.14.0

Published
06 August 2024
Modified
17 September 2024
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:H/I:N/A:N
EPSS Score 0.0058 45th percentile
Risk Priority 51 floored blend · peak EPSS

Summary

CVE-2024-7526 is a medium-severity Use of Uninitialized Resource (CWE-908) vulnerability in Mozilla Firefox Esr. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique OS Credential Dumping (T1003); ranked at the 45th percentile by exploit likelihood (below the median); 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.

EU & UK References

Vulnerability Data

ANGLE failed to initialize parameters which lead to reading from uninitialized memory. This could be leveraged to leak sensitive data from memory. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and…

more

Thunderbird < 115.14.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-32213Same product: Mozilla Firefox
CVE-2026-16384Same product: Mozilla Firefox
CVE-2026-16386Same product: Mozilla Firefox
CVE-2026-16385Same product: Mozilla Firefox
CVE-2025-1942Same product: Mozilla Firefox
CVE-2026-2806Same product: Mozilla Firefox
CVE-2026-4715Same product: Mozilla Firefox
CVE-2024-3862Same product: Mozilla Firefox
CVE-2026-2794Same product: Mozilla Firefox
CVE-2026-4716Same product: Mozilla Firefox

Affected Assets

mozilla
firefox
≤ 129.0
mozilla
firefox esr
128.0 · ≤ 115.14.0
mozilla
thunderbird
128.0.1 · ≤ 115.14.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation (including static analysis) can find uses of uninitialized resources after they are coded.

Requiring documented development standards and tools can mandate initialization checks and safe patterns that stop the weakness from being introduced.

Engineering principles can require explicit resource initialization before use, structurally avoiding uninitialized access.

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 SDLC activities such as static analysis and code review directly prevent use of uninitialized resources while also addressing many other weaknesses.

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 uninitialized resource usage through dynamic analysis and fuzzing.

prevents

Secure development life cycle mandates initialization checks and static analysis that can catch uninitialized resource use.

prevents

Application security requirements can specify mandatory initialization of variables and resources before use.

prevents

Secure system architecture and engineering principles include defensive coding practices that prevent use of uninitialized memory or objects.

prevents

Secure coding standards directly require explicit initialization of all variables and resources, substantially mitigating CWE-908.

References