CVE-2025-47913: SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination

Q: How do I fix CVE-2025-47913?

ssh: upgrade to 0.43.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-47913 being exploited?

CVE-2025-47913 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-47913 affect?

CVE-2025-47913 affects ssh. Severity is high (CVSS 7.5). SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

Q: How urgent is CVE-2025-47913?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2025-47913 is a high-severity flaw (CVSS 7.5) affecting ssh. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-617
Published	2025-11-13
Last modified	2026-10-18

Publisher (CNA): Go Project · Vendor: go

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-13 22:15 UTCPublished CVE record published
2026-10-18 20:10 UTCUpdated Record last modified

go ssh UPGRADE

Affected: < 0.43.0

Fixed in: 0.43.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ssh || rpm -q ssh || ssh --version

2. UPGRADE to 0.43.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ssh

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ssh

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-47913?

ssh: upgrade to 0.43.0. Exact commands for each OS are on this page.

Is CVE-2025-47913 being exploited?

CVE-2025-47913 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-47913 affect?

CVE-2025-47913 affects ssh. Severity is high (CVSS 7.5). SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

How urgent is CVE-2025-47913?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-22869 HIGH 7.5 UPGRADE SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients

References

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