What is the CVSS score of CVE-2025-59537?

CVE-2025-59537 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Is there a public PoC exploit available for CVE-2025-59537?

Yes, a public proof-of-concept exploit is available for CVE-2025-59537. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-59537?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.

Argo Cd CVE-2025-59537

HIGH

Improper Input Validation (CWE-20)

2025-10-01 security-advisories@github.com

GHSA-wp4p-9pxh-cgx2

Denial Of Service Kubernetes Argo Cd Argoproj

7.5

CVSS 3.1 · Vendor: github

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Vulnerability Assessment

Weakness	CWE CWE-20 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V2 - Validation and Business Logic Input validation, allowlisting
Impact	Service disruption affecting availability. In critical infrastructure, DoS can have cascading effects on dependent systems. With a CVSS score of 7.5 (HIGH), this represents a significant risk.
Exploit ScenarioDerived	An attacker sends specially crafted requests that cause excessive resource consumption (CPU, memory, disk) or trigger a crash in the target application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 13, 2026

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. With the default configuration, no webhook.gogs.secret set, Argo CD’s /api/webhook endpoint will crash the entire argocd-server process when it receives a Gogs push event whose JSON field commits[].repo is not set or is null. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.

Earlier versions of this analysis (1)

v1 Mar 13, 2026 - 18:18 CVSS 7.5

RemediationAI

A vendor patch is available — apply it immediately. Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.

Affected Packages

go github.com/argoproj/argo-cd no fix

go github.com/argoproj/argo-cd/v2 fix: 2.14.20

go github.com/argoproj/argo-cd/v3 fix: 3.0.19, 3.1.8, 3.2.0-rc2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in go

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Improper Input Validation (CWE-20).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (github) PRIMARY 7.5 HIGH

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

SUSE HIGH

Red Hat 5.3 MEDIUM

Primary rating from Vendor (github).

CVSS VectorVendor: github

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

PoC Detected

Oct 07, 2025 - 14:34 vuln.today

Public exploit code

Patch released

Oct 07, 2025 - 14:34 nvd

Patch available

CVE Published

Oct 01, 2025 - 21:16 nvd

HIGH 7.5

Executive ViewAI

Why It Matters

Organizations using Argo CD face notable risk from CVE-2025-59537, a input validation vulnerability rated CVSS 7.5. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available, increasing the risk of exploitation. A patch is available and should be applied as part of regular vulnerability management.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score

0.2%

Top 57% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS Vendor

GitHub

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 HIGH

CISA KEV No

Public POC Yes

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

PoC: +20

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:argoproj:argo_cd:*:*:*:*:*:*:*:*

cpe:2.3:a:argoproj:argo_cd:3.2.0:rc1:*:*:*:*:*:*

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Vendor StatusVendor

SUSE

Severity: High

Product	Status
openSUSE Tumbleweed	Fixed

References

Advisories & patches

PATCH https://github.com/argoproj/argo-cd/commit/761fc27068d2d4cd24e1f784eb2a9033b5ee7f43 ADVISORY https://access.redhat.com/errata/RHSA-2025:17730 ADVISORY https://access.redhat.com/errata/RHSA-2025:17731 ADVISORY https://access.redhat.com/errata/RHSA-2025:18093

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