Search/CVE-2026-94127
● CVE — Critical

CVE-2026-94127

Vendorf5Productbig-ip access policy managerDiscoveredSep 22, 2026UpdatedSep 23, 2026

When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability. Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3.1
9.8 CRITICAL
EPSS
2.23%
probability of exploitation in 30 days
CISA KEV
Listed
confirmed active exploitation
News coverage
11
sources referencing this CVE
Related IOCs
seen in the same coverage
EPSS Trend
Sep 24, 2026 → Sep 26, 2026
▲ 0.83pp
1.39% → 2.23% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
18 relationships
Timeline
disclosure → media coverage
Sep 22, 2026
acn.gov.it reports: F5 BIG-IP: rilevato sfruttamento in rete della CVE-2026-94127
Sep 22, 2026
Disclosure — published as a CVE record.
Sep 22, 2026
bsi.bund.de reports: Version 1.0: F5 BIG-IP APM: Aktive Ausnutzug einer Zero-Day Schwachstelle
Sep 22, 2026
cert.europa.eu reports: 2026-013: Critical Vulnerability in F5 BIG-IP APM
Sep 23, 2026
bleepingcomputer.com reports: F5 patches BIG-IP APM zero-day flaw exploited in RCE attacks
Sep 23, 2026
securityweek.com reports: Critical F5 BIG-IP Vulnerability Exploited as Zero-Day
Sep 23, 2026
thehackernews.com reports: F5 Patches Critical BIG-IP APM Zero-Day Exploited for Unauthenticated RCE on OAuth Servers
Sep 23, 2026
helpnetsecurity.com reports: Attackers hit Check Point Management Servers and Spark firewalls, F5 BIG-IP APM instances
Sep 23, 2026
theregister.com reports: Someone's attacking a critical 0-day RCE in F5 BIG-IP APM
Sep 28, 2026
research.checkpoint.com reports: 28th September – Threat Intelligence Report
Sep 28, 2026
thehackernews.com reports: ⚡ Weekly Recap: $387M Crypto Hack, Citrix Exploits, AI Agents Go Off-Script, and More Threats
Oct 2, 2026
thehackernews.com reports: Critical FortiMail Zero-Day Flaw Exploited in Attacks Allows Unauthenticated Arbitrary File Writes