CVE-2026-48852
Analyzed Analyzed - Analysis Complete
ECDSA Signature Verification Failure in PuTTY

Publication date: 2026-05-25

Last updated on: 2026-05-27

Assigner: MITRE

Description
PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.
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Meta Information
Published
2026-05-25
Last Modified
2026-05-27
Generated
2026-06-15
AI Q&A
2026-05-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-48852
EUVD
EUVD-2026-31735
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
putty putty From 0.71 (inc) to 0.84 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-617 The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
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Executive Summary

This vulnerability is an assertion failure in the ECDSA signature verification process in PuTTY versions 0.71 through 0.83. An assertion failure typically means that the software encounters an unexpected condition that causes it to stop or behave incorrectly during the verification of ECDSA signatures.

Impact Analysis

The impact of this vulnerability is limited to availability, as indicated by the CVSS score. It could cause PuTTY to crash or become unavailable during ECDSA signature verification, but it does not affect confidentiality or integrity.

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0/70
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