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CVE-2026-42919— F5 BIG-IP Appliance Mode Vulnerability

CVSS 6.7 · Medium EPSS 0.06% · P18
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I. Basic Information for CVE-2026-42919

Vulnerability Information
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Vulnerability Title
F5 BIG-IP Appliance Mode Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
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，该漏洞源于权限管理问题，可能导致经过身份验证的管理员权限提升并跨越安全边界。
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

VendorProductAffected VersionsCPESubscribe
F5BIG-IP 21.1.0 ~ * -

II. Public POCs for CVE-2026-42919

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III. Intelligence Information for CVE-2026-42919

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Same Patch Batch · F5 · 2026-05-13 · 51 CVEs total

CVE-2026-412259.1 CRITICALiControl REST vulnerability
CVE-2026-419578.8 HIGHBIG-IP and BIG-IQ Configuration utility vulnerability
CVE-2026-400618.7 HIGHiControl REST and tmsh vulnerability
CVE-2026-429308.7 HIGHAppliance mode iControl REST vulnerability
CVE-2026-326738.7 HIGHBIG-IP scripted monitor vulnerability
CVE-2026-341768.7 HIGHKnowledge Appliance mode iControl REST vulnerability
CVE-2026-429458.1 HIGHNGINX ngx_http_rewrite_module vulnerability
CVE-2026-209168.1 HIGHBIG-IQ iControl REST vulnerability
CVE-2026-412177.9 HIGHBIG-IP tmsh vulnerability
CVE-2026-429207.5 HIGHBIG-IP DTLS Vulnerability
CVE-2026-400677.5 HIGHBIG-IP APM Vulnerability
CVE-2026-394557.5 HIGHBIG-IP Configuration utility vulnerability
CVE-2026-394587.5 HIGHBIG-IP DNS Cache vulnerability
CVE-2026-404237.5 HIGHBIG-IP SIP profile vulnerability
CVE-2026-406297.5 HIGHBIG-IP SSL/TLS vulnerability
CVE-2026-406187.5 HIGHBIG-IP SSL/TLS vulnerability
CVE-2026-419567.5 HIGHBIG-IP TMM Vulnerability
CVE-2026-400607.5 HIGHBIG-IP Advanced WAF and ASM vulnerability
CVE-2026-412277.5 HIGHBIG-IP HTTP/2 Layer 7 Dos Protection vulnerability
CVE-2026-424097.5 HIGHBIG-IP HTTP/2 vulnerability

Showing top 20 of 51 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: BIG-IP
Same vendor: F5
Same weakness: CWE-121

V. Comments for CVE-2026-42919

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