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Fencer Intel
critical 9.1

CVE-2022-24976 json

Atheme IRC Services before 7.2.12, when used in conjunction with InspIRCd, allows authentication bypass by ending an IRC handshake at a cer…

published 4y ago modified 4mo ago also EUVD-2022-29726

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

Atheme IRC Services before 7.2.12, when used in conjunction with InspIRCd, allows authentication bypass by ending an IRC handshake at a certain point during a challenge-response login sequence.

Patch / fix

  • atheme atheme 7.2.12
  • atheme-services Debian 14, Debian 13, Debian 12 7.2.12-1

debian advisories DEBIAN-CVE-2022-24976

  • atheme openSUSE Tumbleweed 7.2.12-2.1
  • atheme Package Hub 15 SP4, openSUSE Leap 15.4 7.2.12-bp154.2.3.1
  • atheme Package Hub 15 SP3, openSUSE Leap 15.3 7.2.12-bp153.2.3.1

opensuse advisories openSUSE-SU-2024:11848-1openSUSE-SU-2022:10019-1openSUSE-SU-2022:10018-1

Is CVE-2022-24976 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.81% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • openwall.com https://www.openwall.com/lists/oss-security/2022/01/30/4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.