CVE-2021-22991
קריטית 9.8 מנוצלת בשטח (KEV)
ניצול פעיל מאומת — קטלוג CISA KEV
- שם
- F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- נוסף לקטלוג
- יעד טיפול (פדרלי)
- פעולה נדרשת
- Apply updates per vendor instructions.
תיאור (מקור, אנגלית)
On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3, undisclosed requests to a virtual server may be incorrectly handled by the Traffic Management Microkernel (TMM) URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may theoretically allow bypass of URL based access control or remote code execution (RCE). Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
מדדים
- CVSS 3.1
-
9.8 (CRITICAL)
מקור הציון: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — סבירות ניצול
- 61% (אחוזון 100) נכון ל-24/7/2026
- CWE
- CWE-119
מוצרים מושפעים
f5: big-ip access policy manager; f5: big-ip advanced firewall manager; f5: big-ip advanced web application firewall; f5: big-ip analytics; f5: big-ip application acceleration manager; f5: big-ip application security manager; f5: big-ip ddos hybrid defender; f5: big-ip domain name system; f5: big-ip fraud protection service; f5: big-ip global traffic manager; f5: big-ip link controller; f5: big-ip local traffic manager; f5: big-ip policy enforcement manager; f5: ssl orchestrator
קישורים
- https://support.f5.com/csp/article/K56715231 Vendor Advisory
- https://support.f5.com/csp/article/K56715231 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-202… US Government Resource