CVE-2025-47914

Malformed constraint may cause denial of service in golang.org/x/crypto/ssh/agent

Published Nov 19, 2025 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-f6x5-jh6r-wrfv golang.org/x/crypto/ssh/agent vulnerable to panic if message is malformed due to out of bounds read
History
Type Values Removed Values Added
CPEs cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*
Type Values Removed Values Added
First Time appeared Golang
Golang crypto
Golang ssh
Vendors & Products Golang
Golang crypto
Golang ssh
Type Values Removed Values Added
Title CVE-2025-47914 in golang.org/x/crypto/ssh/agent Malformed constraint may cause denial of service in golang.org/x/crypto/ssh/agent
Type Values Removed Values Added
Weaknesses CWE-125
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Title CVE-2025-47914 in golang.org/x/crypto/ssh/agent
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Go
Published
Updated
Nov 20, 2025, 5:15 PM
Reserved
May 13, 2025, 11:31 PM
Status
Analyzed
Published
Nov 19, 2025, 9:15 PM
Modified
Oct 18, 2026, 8:10 PM
Severity
Moderate
Public date
Nov 19, 2025, 8:33 PM