CVE-2025-53521

When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://my.f5.com/manage/s/article/K000156741	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53521	US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f5:big-ip_access_policy_manager::::::::
	cpe:2.3:a:f5:big-ip_access_policy_manager::::::::
	cpe:2.3:a:f5:big-ip_access_policy_manager::::::::
	cpe:2.3:a:f5:big-ip_access_policy_manager::::::::

History

No history.

Information

Published : 2025-10-15 14:15

Updated : 2026-06-17 09:38

NVD link : CVE-2025-53521

Mitre link : CVE-2025-53521

CVE.ORG link : CVE-2025-53521

JSON object : View

Products Affected

f5

big-ip_access_policy_manager

CWE

CWE-121

Stack-based Buffer Overflow

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"modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "f5sirt@f5.com", "affectedData": [{"vendor": "F5", "modules": ["APM"], "product": "BIG-IP", "versions": [{"status": "affected", "version": "17.5.0", "lessThan": "17.5.1.3", "versionType": "custom"}, {"status": "affected", "version": "17.1.0", "lessThan": "17.1.3", "versionType": "custom"}, {"status": "affected", "version": "16.1.0", "lessThan": "16.1.6.1", "versionType": "custom"}, {"status": "affected", "version": "15.1.0", "lessThan": "15.1.10.8", "versionType": "custom"}], "defaultStatus": "unknown"}]}], "published": "2025-10-15T14:15:48.377", "references": [{"url": "https://my.f5.com/manage/s/article/K000156741", "tags": ["Vendor Advisory"], "source": "f5sirt@f5.com"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53521", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "f5sirt@f5.com", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE).\u00a0\u00a0\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "lastModified": "2026-06-17T09:38:22.483", "cisaActionDue": "2026-03-30", "cisaExploitAdd": "2026-03-27", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*", "vulnerable": true, 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