PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.

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Fixes

Solution

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Workaround

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History

Tue, 26 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 25 May 2026 22:45:00 +0000

Type Values Removed Values Added
Title Assertion Failure in ECDSA Host Key Verification in PuTTY

Mon, 25 May 2026 20:45:00 +0000

Type Values Removed Values Added
Description PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.
First Time appeared Putty
Putty putty
Weaknesses CWE-617
CPEs cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*
Vendors & Products Putty
Putty putty
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-26T12:39:14.852Z

Reserved: 2026-05-25T20:19:20.308Z

Link: CVE-2026-48852

cve-icon Vulnrichment

Updated: 2026-05-26T12:39:12.140Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-25T21:16:35.543

Modified: 2026-05-27T19:11:47.077

Link: CVE-2026-48852

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-25T22:30:16Z

Weaknesses