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F5 BIG-IP EUVD-2026-30002

| CVE-2026-42781 HIGH
Loop with Unreachable Exit Condition (Infinite Loop) (CWE-835)
2026-05-13 f5 GHSA-543h-qfcx-5xww
Denial Of Service
7.1
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:A/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
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

5
Re-analysis Queued
May 13, 2026 - 16:22 vuln.today
cvss_changed
Severity Changed
May 13, 2026 - 16:22 NVD
MEDIUM HIGH
CVSS changed
May 13, 2026 - 16:22 NVD
6.5 (MEDIUM) 7.1 (HIGH)
Analysis Generated
May 13, 2026 - 15:52 vuln.today
CVE Published
May 13, 2026 - 14:12 nvd
MEDIUM 6.5

DescriptionNVD

When embedded Packet Velocity Acceleration (ePVA) acceleration is configured, undisclosed local ethernet traffic can cause an increase in ePVA and Traffic Management Microkernel (TMM) resource utilization.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

AnalysisAI

Denial of service in F5 BIG-IP when Packet Velocity Acceleration (ePVA) is enabled allows local network attackers to exhaust ePVA and Traffic Management Microkernel (TMM) resources through crafted ethernet traffic, causing service degradation or unavailability. CVSS 6.5 (medium severity) reflects adjacent network access requirement and high availability impact. …

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EUVD-2026-30002 vulnerability details – vuln.today
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