CVE-2025-14547
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Integer Underflow in Silicon Labs PSA Crypto Causes DoS

Publication date: 2026-02-20

Last updated on: 2026-02-20

Assigner: Silicon Graphics (SGI)

Description
An integer underflow vulnerability is present in Silicon Lab’s implementation of PSA Crypto and SE Manager EC-JPAKE APIs during ZKP parsing. Triggering the underflow can lead to a hard fault, causing a temporary denial of service.

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Meta Information

Published
2026-02-20
Last Modified
2026-02-20
Generated
2026-07-06
AI Q&A
2026-02-20
EPSS Evaluated
2026-07-04
NVD
CVE-2025-14547
EUVD
EUVD-2025-207676

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
silicon_labs psa_crypto *
silicon_labs se_manager *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-191 The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Attack-Flow Graph

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Executive Summary

This vulnerability is an integer underflow issue found in Silicon Lab's implementation of PSA Crypto and SE Manager EC-JPAKE APIs during the parsing of zero-knowledge proofs (ZKP). An integer underflow occurs when a calculation results in a value smaller than the minimum representable value, which can cause unexpected behavior.

Triggering this underflow leads to a hard fault, which is a severe error causing the system to stop normal operation temporarily.

In summary, this vulnerability can cause the affected system to crash or become temporarily unavailable when processing certain cryptographic operations.

Impact Analysis

The primary impact of this vulnerability is a temporary denial of service (DoS). When exploited, it causes a hard fault that disrupts normal system operation.

This means that the affected device or application may crash or become unresponsive temporarily, potentially interrupting critical cryptographic functions.

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