5.3

CVE-2022-2663: debian debian_linux

Modified
AliasesUBUNTU-CVE-2022-2663DEBIAN-CVE-2022-2663CGA-26fc-fm54-cjx3
Published 01-09-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-2663 is a medium (CVSS 5.3) vulnerability in debian debian_linux. EPSS estimates a 4.07% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
4.07%
0%100%
Low · +0.87 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 45 · Related 36
DLA-3131-1DLA-3173-1DSA-5257-1MGASA-2022-0379MGASA-2022-0380RHSA-2023:2148

Timeline

  1. 01-09-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

4.07%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

Increase +0.87 pp

From 3.19% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (dgl.cx)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (youtube.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu85 products
  • linuxAll versions (No fix recorded) | < 4.4.0-239.273 | < 4.15.0-204.215 | < 5.4.0-136.153 | < 5.15.0-57.63
  • linux-aws< 4.4.0-1117.123 | < 4.4.0-1155.170 | < 4.15.0-1150.163 | < 5.4.0-1093.101 | < 5.15.0-1027.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Chainguard83 products
  • hyperv-daemons-6.18All versions (No fix recorded)
  • hyperv-daemons-genericAll versions (No fix recorded)
  • linux-aws-6.12< 6.12.65-r0 | All versions (No fix recorded)
  • linux-aws-6.12-boot-installedAll versions (No fix recorded)
  • linux-aws-6.12-fips-boot-installedAll versions (No fix recorded)
Debian2 products
Linux1 product

4 vendors · 171 products

References

36 links
Show all 36 references