CVE-2025-36504— BIG-IP HTTP/2 vulnerability
Quick assessment
Affected
F5 BIG-IP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
F5 BIG-IP是美国F5公司的一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的应用交付平台。 F5 BIG-IP存在安全漏洞，该漏洞源于内存资源利用率增加。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2025-36504
Vulnerability Information
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Vulnerability Title
BIG-IP HTTP/2 vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
When a BIG-IP HTTP/2 httprouter profile is configured on a virtual server, undisclosed responses can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
F5 BIG-IP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 BIG-IP是美国F5公司的一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的应用交付平台。 F5 BIG-IP存在安全漏洞，该漏洞源于内存资源利用率增加。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| F5 | BIG-IP | 17.5.0 ~ * | - |
|
| F5 | BIG-IP Next | 20.2.0 ~ 20.3.0 | - |
|
| F5 | BIG-IP Next SPK | 1.8.0 ~ 2.0.0 | - |
|
| F5 | BIG-IP Next CNF | 1.1.0 ~ 1.4.0 | - |
|
II. Public POCs for CVE-2025-36504
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-36504 (1)
Same Patch Batch · F5 · 2025-05-07 · 12 CVEs total
| CVE-2025-46265 | 8.8 HIGH | F5OS vulnerability |
| CVE-2025-31644 | 8.7 HIGH | Appliance mode BIG-IP iControl REST and tmsh vulnerability |
| CVE-2025-36546 | 8.1 HIGH | F5OS Appliance Mode vulnerability |
| CVE-2025-35995 | 7.5 HIGH | BIG-IP PEM vulnerability |
| CVE-2025-41431 | 7.5 HIGH | TMM Vulnerability |
| CVE-2025-36525 | 7.5 HIGH | BIG-IP APM PingAccess Virtual Server Vulnerability |
| CVE-2025-41414 | 7.5 HIGH | BIG-IP HTTP/2 vulnerability |
| CVE-2025-41433 | 7.5 HIGH | BIG-IP SIP ALG profile vulnerability |
| CVE-2025-36557 | 7.5 HIGH | BIG-IP HTTP vulnerability |
| CVE-2025-41399 | 7.5 HIGH | SCTP Vulnerability |
| CVE-2025-43878 | 6.0 MEDIUM | F5OS-A/C CLI vulnerability |
IV. Related Vulnerabilities
Same vendor: F5
Same weakness: CWE-770
-
CVE-2026-63075
QUIC ACK-only Packet Retention Can Cause Memory Exhaustion -
CVE-2026-63074
CMP Indefinite Cache Growth of ExtraCerts -
CVE-2026-79661
Ech0 before 4.7.3 Unauthenticated fav_count Modification -
CVE-2026-78321
DJI Drone HTTP Media Server Denial of Service via Connection -
CVE-2026-59279
Unbounded persistent session allocation via repeated initial
V. Comments for CVE-2025-36504
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