CVE detail
CVE-2021-22991: F5 BIG-IP Traffic Management Microkernel Buffer Overflow
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
F5 · BIG-IP Traffic Management Microkernel
- Date added (KEV)
- Jan 18, 2022
- CISA due date
- Feb 01, 2022
- Ransomware campaign use
- Unknown
Scorifya interpretation
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Plain English
Technical detail
From CISA
The Traffic Management Microkernel of BIG-IP ASM Risk Engine has a buffer overflow vulnerability, leading to a bypassing of URL-based access controls.
https://nvd.nist.gov/vuln/detail/CVE-2021-22991
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See Scorifya Controls →References
- https://support.f5.com/csp/article/K56715231Vendor Advisory
- https://support.f5.com/csp/article/K56715231Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22991US Government Resource
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- CVE-2025-53521BIG-IP, F5 BIG-IP Stack-Based Buffer Overflow Vulnerability
- CVE-2023-46747BIG-IP Configuration Utility, F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability
- CVE-2023-46748BIG-IP Configuration Utility, F5 BIG-IP Configuration Utility SQL Injection Vulnerability
- CVE-2022-1388BIG-IP, F5 BIG-IP Missing Authentication Vulnerability
- CVE-2020-5902BIG-IP, F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability