CVE-2021-22991

mediumPriorität · handeln · 90OT-Risiko · kritischKEV · ausgenutztEPSS 0.624 · 99. PerzentilEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

62.4% (99th) EPSS

CVSS 6.8 · medium

Is it mine?

141 products

Prüfe deine Angriffsfläche

Who says so?

3 sources

cnnvd · enisa_euvd · fstec_bdu

hinzugefügt 2022-01-18beheben bis 2022-02-01

erforderliche Maßnahme Apply updates per vendor instructions.

EPSS · bewertet 2026-10-27

F5 BIG-IP Traffic Management Microkernel Buffer Overflow

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.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–critical · 6.8–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.19criticalAV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HsecondaryAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-119USprimärCWE-79US

betroffene Produkte (141)

Betroffene Produkte und Versionsbereiche.

n/a BIG-IP≤ 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, 12.1.x before 12.1.5.3enisa_euvdEU
F5 Networks, Inc. BIG-IP Access Policy Manager12.1.0 → 12.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Access Policy Manager13.1.0 → 13.1.3.6fstec_bduRU
F5 Networks, Inc. BIG-IP Access Policy Manager14.1.0 → 14.1.4fstec_bduRU
F5 Networks, Inc. BIG-IP Access Policy Manager15.1.0 → 15.1.2.1fstec_bduRU
F5 Networks, Inc. BIG-IP Access Policy Manager16.0.0 → 16.0.1.1fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager12.1.0 → 12.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager13.1.0 → 13.1.3.6fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager14.1.0 → 14.1.4fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager15.1.0 → 15.1.2.1fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Firewall Manager16.0.0 → 16.0.1.1fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall12.1.0 → 12.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall13.1.0 → 13.1.3.6fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall14.1.0 → 14.1.4fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall15.1.0 → 15.1.2.1fstec_bduRU
F5 Networks, Inc. BIG-IP Advanced Web Application Firewall16.0.0 → 16.0.1.1fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics12.1.0 → 12.1.5.3fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics13.1.0 → 13.1.3.6fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics14.1.0 → 14.1.4fstec_bduRU
F5 Networks, Inc. BIG-IP Analytics15.1.0 → 15.1.2.1fstec_bduRU

20 von 141 angezeigt

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu NVD CVE.org MITRE

veröffentlicht 2021-03-31geändert 2026-06-17

verwandt (21,028)

Verwandte Einträge.

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Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before…
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Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FI…
CVE-2026-8452US	critical9.8OT kritisch	1.01% (63rd)	KEV	2026-06-30
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (…
CVE-2026-53266US	—OT kritisch	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
CVE-2026-3910US	high8.8OT kritisch	2.69% (86th)	KEV	2026-03-13
Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium s…

+21023 weitere

Referenzen (8)

Externe Belege — Patches, Meldungen, Analysen.

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