Cyber Resilience

CVE-2023-1521

HighPublic PoCLPE

Published: 26 November 2024

Published
26 November 2024
Modified
15 October 2025
KEV Added
—
Patch
—
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0032 55.6th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-1521 is a high-severity Untrusted Search Path (CWE-426) vulnerability in Mozilla Sccache. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 44.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when…

more

installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.

CWE(s)
CWE-426

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mozilla
sccache
≤ 0.4.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References