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CVE-2025-43878— F5OS-A/C CLI vulnerability

Quick assessment

Affected
F5 F5OS - Appliance
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 F5OS是F5公司的F5设备上运行的专有操作系统，用于支持其应用交付控制和安全性能的功能。 F5 F5OS存在安全漏洞，该漏洞源于管理员可绕过设备模式限制。

CVSS 6.0 · Medium EPSS 0.17% · P5

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-43878

Vulnerability Information
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Vulnerability Title
F5OS-A/C CLI vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
When running in Appliance mode, an authenticated attacker assigned the Administrator or Resource Administrator role may be able to bypass Appliance mode restrictions utilizing system diagnostics tcpdump command utility on a F5OS-C/A system.  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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
引号语法转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
F5 F5OS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
F5 F5OS是F5公司的F5设备上运行的专有操作系统，用于支持其应用交付控制和安全性能的功能。 F5 F5OS存在安全漏洞，该漏洞源于管理员可绕过设备模式限制。
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 F5OS - Appliance 1.5.1 ~ 1.8.0 -
F5 F5OS - Chassis 1.6.0 ~ 1.8.0 -

II. Public POCs for CVE-2025-43878

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III. Intelligence Information for CVE-2025-43878

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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-2025-36504 7.5 HIGH BIG-IP HTTP/2 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

IV. Related Vulnerabilities

Same product: F5OS - Appliance
Same vendor: F5
Same weakness: CWE-149

V. Comments for CVE-2025-43878

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