CVE-2026-41227

On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in memory consumption causing the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://my.f5.com/manage/s/article/K000158979	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f5:big-ip_advanced_web_application_firewall::::::::
	cpe:2.3:a:f5:big-ip_advanced_web_application_firewall::::::::
	cpe:2.3:a:f5:big-ip_application_security_manager::::::::
	cpe:2.3:a:f5:big-ip_application_security_manager::::::::
	cpe:2.3:a:f5:big-ip_ddos_hybrid_defender::::::::
	cpe:2.3:a:f5:big-ip_ddos_hybrid_defender::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:f5:big-ip_advanced_web_application_firewall::::::::
	cpe:2.3:a:f5:big-ip_application_security_manager::::::::
	cpe:2.3:a:f5:big-ip_ddos_hybrid_defender::::::::

History

26 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) En un servidor virtual HTTP/2 con Protección DoS de Capa 7 configurada, el tráfico no revelado puede resultar en un aumento del consumo de memoria, lo que provoca la terminación del proceso Traffic Management Microkernel (TMM). Nota: Las versiones de software que han alcanzado el Fin de Soporte Técnico (EoTS) no se evalúan.

Information

Published : 2026-05-13 16:16

Updated : 2026-10-26 17:10

NVD link : CVE-2026-41227

Mitre link : CVE-2026-41227

CVE.ORG link : CVE-2026-41227

JSON object : View

Products Affected

f5

big-ip_advanced_web_application_firewall
big-ip_ddos_hybrid_defender
big-ip_application_security_manager

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

{"id": "CVE-2026-41227", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41227", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-13T16:02:24.748230Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "f5sirt@f5.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "f5sirt@f5.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "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": ["Advanced WAF", "DDoS Hybrid Defender"], "product": "BIG-IP", "versions": [{"status": "unaffected", "version": "21.0.0", "lessThan": "*", "versionType": "custom"}, {"status": "affected", "version": "17.5.0", "lessThan": "17.5.1.4", "versionType": "custom"}, {"status": "affected", "version": "17.1.0", "lessThan": "17.1.3.1", "versionType": "custom"}, {"status": "affected", "version": "16.1.0", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-13T16:16:44.920", "references": [{"url": "https://my.f5.com/manage/s/article/K000158979", "tags": ["Vendor Advisory"], "source": "f5sirt@f5.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "f5sirt@f5.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in memory consumption causing the Traffic Management Microkernel (TMM) process to terminate.\u00a0\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}, {"lang": "es", "value": "En un servidor virtual HTTP/2 con Protecci\u00f3n DoS de Capa 7 configurada, el tr\u00e1fico no revelado puede resultar en un aumento del consumo de memoria, lo que provoca la terminaci\u00f3n del proceso Traffic Management Microkernel (TMM). Nota: Las versiones de software que han alcanzado el Fin de Soporte T\u00e9cnico (EoTS) no se eval\u00faan."}], "lastModified": "2026-10-26T17:10:03.270", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D186FF46-E0B0-4B54-9EA9-87AD379FA600", "versionEndIncluding": "17.1.3", "versionStartIncluding": "17.1.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AFFB39F-3E07-4316-9DD6-C36407B09C20", "versionEndIncluding": "17.5.1", "versionStartIncluding": "17.5.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "59042348-3748-48E0-B78B-D978C6B241B2", "versionEndIncluding": "17.1.3", "versionStartIncluding": "17.1.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5082DEBB-5C7F-41A2-B48F-0C72C3A6782B", "versionEndIncluding": "17.5.1", "versionStartIncluding": "17.5.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA180633-8625-4F8E-90E2-235BCD334256", "versionEndIncluding": "17.1.3", "versionStartIncluding": "17.1.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66DDBE6D-423A-4F60-9D06-0E10CB93FB66", "versionEndIncluding": "17.5.1", "versionStartIncluding": "17.5.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "920FA89D-E154-4936-B88E-8B60D5B39B40", "versionEndIncluding": "16.1.6", "versionStartIncluding": "16.1.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CA7B9727-7694-4D1B-8B48-175196544050", "versionEndIncluding": "16.1.6", "versionStartIncluding": "16.1.0"}, {"criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "226B7285-7977-4BBC-947E-E9541E1AAB89", "versionEndIncluding": "16.1.6", "versionStartIncluding": "16.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "f5sirt@f5.com"}