Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-29166

28
FAUCET Score

CVE-2022-29166 is a high-severity vulnerability affecting matrix-appservice-irc, a Node.js IRC bridge for Matrix, specifically impacting the node-irc component. An attacker can exploit this by sending a maliciously crafted message that, when replied to by a Matrix user, forces the execution of arbitrary IRC commands. This vulnerability carries a CVSS score of 8.8 (High), indicating a network-based attack with low complexity, requiring user interaction, and leading to high impacts on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the vulnerability has been patched in matrix-appservice-irc version 0.33.2.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.33.2CPE matchmatch criteria
cpe:2.3:a:matrix:matrix_irc_bridge:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 59th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: matrix-appservice-ircFixed in: 0.33.2

Vendor Advisories (1)

npmGHSA-37hr-348p-rmf4high

Improper handling of multiline messages in node-irc affects matrix-appservice-irc

May 23, 2022

References

github.com / matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4
Third Party Advisory
matrix.org / blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity
Release NotesVendor Advisory