CVE-2025-47913

Potential denial of service in golang.org/x/crypto/ssh/agent

Published Nov 13, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-56w8-48fp-6mgv golang.org/x/crypto/ssh/agent has a potential denial of service
Ubuntu USN Ubuntu USN USN-8519-1 Go Cryptography vulnerabilities
History
Type Values Removed Values Added
First Time appeared Go
Go ssh
Weaknesses CWE-617
CPEs cpe:2.3:a:go:ssh:*:*:*:*:*:go:*:*
Vendors & Products Go
Go ssh
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
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

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

Type Values Removed Values Added
Description SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.
Title Potential denial of service in golang.org/x/crypto/ssh/agent
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Go
Published
Updated
Dec 16, 2025, 4:43 PM
Reserved
May 13, 2025, 11:31 PM
Status
Analyzed
Published
Nov 13, 2025, 10:15 PM
Modified
Oct 18, 2026, 8:10 PM
Severity
Important
Public date
Nov 13, 2025, 9:29 PM