Cyber Resilience

CVE-2025-57327

High

Published: 24 September 2025

Published
24 September 2025
Modified
20 October 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0015 35.9th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-57327 is a high-severity Prototype Pollution (CWE-1321) vulnerability in Spmjs Spmrc. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 35.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

spmrc is a package that provides the rc manager for spm. A Prototype Pollution vulnerability in the set and config function of spmrc version 1.2.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing…

more

denial of service (DoS) as the minimum consequence.

CWE(s)
CWE-1321

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Prototype pollution in spmrc's set and config functions enables injection of properties on Object.prototype, leading to denial of service via application exploitation.

Affected Assets

spmjs
spmrc
≤ 1.2.0

Mitigating Controls

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

References