Skip to main content
cvebuzz

CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2021-22991

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 9.8 · CriticalBuzz score 52.6KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 52.6

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 11.5 · KEV 25.0 · OTX 0.0 · PoC 0.0
Mention score
16.1
4 evidence mentions in the snapshot
Diversity score
11.5
3 sources across 2 categories
KEV score
25.0
Known exploited vulnerability present
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
4 source links · newest first
  • US CISA added 17 flaws to its Known Exploited Vulnerabilities CatalogSecurity Affairs

    US CISA added seventeen new actively exploited vulnerabilities to the ‘Known Exploited Vulnerabilities Catalog’. The ‘Known Exploited Vulnerabilities Catalog‘ is a list of known vulnerabilities that threat actors have abused in attacks and that are required to be addressed by Federal Civilian Executive Branch (FCEB) agencies. According to Binding Operational Directive (BOD) 22-01: Reducing the […]

    newssecurityaffairs.comJan 23, 2022, 6:13 PM
  • Network Attack Trends: February-April 2021Unit42

    Network attack trends for February-April 2021 include a continued focus from attackers on high-impact, low-effort attacks.

    vendorunit42.paloaltonetworks.comJul 1, 2021, 10:00 PM
  • F5 addresses critical vulnerabilities in BIG-IP and BIG-IQSecurity Affairs

    Security firm F5 announced the availability of patches for seven vulnerabilities in BIG-IP, four of which have been rated as “critical” severity. BIG-IP product family includes hardware, modularized software, and virtual appliances that run the F5 TMOS operating system and provides load balancing, firewall, access control, threat protection capabilities. The vendor has released security updates for seven […]

    newssecurityaffairs.comMar 11, 2021, 8:22 AM
  • F5 Patches Four Critical Bugs in Big-IP SuiteSecurityWeek

    Application services and network delivery firm F5 on Wednesday announced the release of patches for seven related vulnerabilities in BIG-IP, including four with a “critical” severity rating.

    newswww.securityweek.comMar 10, 2021, 8:25 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence