What’s Vulnerable › Vulnerabilities

CVE-2025-22869: Potential denial of service in golang.org/x/crypto

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-770

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.

Affected products

• Go Ssh: before 0.35.0 — fixed in 0.35.0
• Golang.Org/X/Crypto: before 0.35.0 — fixed in 0.35.0

How to fix

Upgrade to a fixed version: Go Ssh 0.35.0; Golang.Org/X/Crypto 0.35.0. Check the vendor advisory for mitigations.

References

• https://go.dev/cl/652135
• https://go.dev/issue/71931
• https://pkg.go.dev/vuln/GO-2025-3487
• https://security.netapp.com/advisory/ntap-20250411-0010/

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