Cyber Resilience

CVE-2025-46706

HighDDoS

Published: 15 October 2025

Published
15 October 2025
Modified
21 October 2025
KEV Added
Patch
CVSS Score v4 8.7 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
EPSS Score 0.0009 25.1th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-46706 is a high-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in F5 Big-Ip Access Policy Manager. Its CVSS base score is 8.7 (High).

Operationally, ranked at the 25.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

When an iRule containing the HTTP::respond command is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

f5
big-ip next cloud-native network functions
1.1.0 — 1.4.1
f5
big-ip next service proxy for kubernetes
1.7.0 — 1.9.2
f5
big-ip access policy manager
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip advanced firewall manager
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip advanced web application firewall
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip analytics
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip application acceleration manager
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip application security manager
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip application visibility and reporting
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
f5
big-ip automation toolchain
16.1.0 — 16.1.6 · 17.1.0 — 17.1.2.2
+13 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-770

This control implements explicit throttling on session allocation, addressing the weakness of allocating resources without limits.

addresses: CWE-770

Plan testing exercises resource allocation limits and throttling during simulated failures, directly addressing weaknesses that allow unbounded resource use.

addresses: CWE-770

Contingency plan updates ensure recovery strategies address unbounded resource allocation, making it harder for attackers to exploit lack of throttling to cause prolonged outages.

addresses: CWE-770

Provides continuity when unbounded resource allocation at the primary site leads to exhaustion and downtime.

addresses: CWE-770

Alternate services allow operations to continue when primary allocation of resources lacks limits or throttling.

addresses: CWE-770

Explicit planning of security-related actions requires defining limits, windows, and resource allocations, making allocation without throttling far less likely.

addresses: CWE-770

Measures of performance include tracking allocation behavior and throttling effectiveness, reducing the window for resource exhaustion attacks.

addresses: CWE-770

Imposes an inactivity-based limit on network resource allocation, throttling the number of concurrently held connections.

References