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

CVE detail

CVE-2022-20623

A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD traffic to be dropped on an affected device. This vulnerability is due to a logic error in the BFD rate limiter functionality. An attacker could exploit this vulnerability by sending a crafted stream of traffic through the device. A successful exploit could allow the attacker to cause BFD traffic to be dropped, resulting in BFD session flaps. BFD session flaps can cause route instability and dropped traffic, resulting in a denial of service (DoS) condition. This vulnerability applies to both IPv4 and IPv6 traffic.

CVSS 8.6 · HighBuzz score 21.0

Buzz score

Why this CVE is surfacing

Buzz score total 21.0

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 11.0 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
11.0
2 evidence mentions in the snapshot
Diversity score
10.0
2 sources across 2 categories
KEV score
0.0
No KEV entry observed
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
2 source links · newest first
  • 28th February – Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 28th February, please download our Threat Intelligence Bulletin. Top Attacks and Breaches Check Point Research has released data on cyber attacks observed around the current Russia/Ukraine conflict. Cyber attacks on Ukraine’s government and military sector surged by 196% in the first three days of […]

    vendorresearch.checkpoint.comFeb 28, 2022, 4:37 PM
  • NSA Informs Cisco of Vulnerability Exposing Nexus Switches to DoS AttacksSecurityWeek

    Cisco this week announced the availability of patches for four vulnerabilities in its FXOS and NX-OS network operating systems, including one denial of service bug that was reported by the NSA.

    newswww.securityweek.comFeb 24, 2022, 3:28 PM

Exploit code

Public exploit repository references

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

Related records

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