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CVE detail

CVE-2022-20685

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

CVSS 7.5 · HighBuzz score 20.4

Buzz score

Why this CVE is surfacing

Buzz score total 20.4

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 13.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 evidence mentions in the snapshot
Diversity score
6.5
2 sources across 1 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
3 source links · newest first
  • A new round of the weekly Security Affairs newsletter arrived! Every week the best security articles from Security Affairs free for you in your email box. If you want to also receive for free the newsletter with the international press subscribe here. T-Mobile confirms Lapsus$ had access its systems Are you using Java 15/16/17 or 18 […]

    newssecurityaffairs.comApr 24, 2022, 8:55 AM
  • CVE-2022-20685 flaw in the Modbus preprocessor of the Snort detection engine could trigger a DoS condition and make it ineffective against malicious traffic. Snort is a free open source network intrusion detection system (IDS) and intrusion prevention system (IPS) which is currently developed by Cisco. The software performs real-time traffic analysis and packet logging on Internet Protocol (IP) networks, protocol analysis, content searching and […]

    newssecurityaffairs.comApr 21, 2022, 7:58 AM
  • Cisco on Tuesday announced patches for a critical vulnerability in the Redundancy Configuration Manager (RCM) for the StarOS software running on its ASR 5000 networking devices. A Cisco proprietary node/network function, RCM delivers redundancy of StarOS-based user plane functions.

    newswww.securityweek.comJan 20, 2022, 6:44 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

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