Home/CVE/SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, al
CVE

CVE-2025-58181

SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, al

SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.

MEDIUM · CVSS 5.3 EPSS 0.00046
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

1
golang crypto< 0.45.0
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go golang.org/x/crypto MODERATE fixed in 0.45.0
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighLinux Crypto Mining Pool Connections
producthighLinux Crypto Mining Indicators
producthighCisco Crypto Commands
producthighMonero Crypto Coin Mining Pool Lookup
producthighNetwork Communication With Crypto Mining Pool
producthighPotential Crypto Mining Activity
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@golang.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Nov 2025 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

30
suse-csafopenSUSE-SU-2026:20730-1
suse-csafopenSUSE-SU-2026:20620-1
rhsaRHSA-2026:7385Moderate
suse-csafopenSUSE-SU-2026:10543-1
rhsaRHSA-2026:7291Moderate
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://go.dev/cl/721961Patch
https://go.dev/issue/76363Issue Tracking
https://groups.google.com/g/golang-announce/c/w-oX3UxNcZAMailing List
https://pkg.go.dev/vuln/GO-2025-4134Vendor Advisory
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