CVE-2025-22869: ssh DoS — Fix

Description

SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor	Product	Versions
go	ssh	< 0.35.0

References

Advisories & Patches

https://go.dev/cl/652135 https://go.dev/issue/71931 https://pkg.go.dev/vuln/GO-2025-3487

Other References

https://security.netapp.com/advisory/ntap-20250411-0010/

Frequently Asked Questions

What is CVE-2025-22869? +

SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-22869? +

CVE-2025-22869 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-22869? +

CVE-2025-22869 affects products from go, specifically: ssh. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-22869? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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