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Crypto CVE-2025-58181

MEDIUM
Allocation of Resources Without Limits or Throttling (CWE-770)
2025-11-19 security@golang.org
Denial Of Service Golang Crypto
5.3
CVSS 3.1 · Vendor: golang
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Vulnerability Assessment

Weakness
CWE
CWE-770
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource allocation limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.09%.
Exploit ScenarioDerived

A remote attacker could exhaust system resources through uncontrolled allocation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

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. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.

Affected Packages

go golang.org/x/crypto fix: 0.45.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in go

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Technical ContextAI · show details

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. 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. Affected products include: Golang Crypto.

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Severity by source

Vendor (golang) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SUSE MEDIUM
Red Hat 5.3 MEDIUM

Primary rating from Vendor (golang).

CVSS VectorVendor: golang

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

2
Patch released
Mar 28, 2026 - 19:23 nvd
Patch available
CVE Published
Nov 19, 2025 - 21:15 nvd
MEDIUM 5.3

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

CVE-2025-58181 presents moderate security risk rated CVSS 5.3. Exploitation could compromise the security of affected deployments. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.1%
Top 75% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS Vendor

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Low

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container suse/sl-micro/6.0/baremetal-os-container:2.1.3-6.119 Affected
Container suse/sl-micro/6.0/base-os-container:2.1.3-7.86 Affected
Container suse/sl-micro/6.0/kvm-os-container:2.1.3-6.106 Container suse/sl-micro/6.0/rt-os-container:2.1.3-7.120 Affected
Container suse/sl-micro/6.0/toolbox:13.2-9.16 Affected
Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.49 Affected

References

Advisories & patches
PATCH https://go.dev/cl/721961 ADVISORY https://access.redhat.com/errata/RHSA-2026:6503 ADVISORY https://pkg.go.dev/vuln/GO-2025-4134 ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0439/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0592/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0666/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0772/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0777/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0972/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:1118/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20176/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20244/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20357/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20539/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20578/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20651/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20694/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20904/ REF https://go.dev/issue/76363 REF https://groups.google.com/g/golang-announce/c/w-oX3UxNcZA

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