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Fencer Vulns
critical 9.8

CVE-2018-1000178 json

A heap corruption of type CWE-120 exists in quassel version 0.12.4 in quasselcore in void DataStreamPeer::processMessage(const QByteArray &…

published 2018-05-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1871

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A heap corruption of type CWE-120 exists in quassel version 0.12.4 in quasselcore in void DataStreamPeer::processMessage(const QByteArray &msg) datastreampeer.cpp line 62 that allows an attacker to execute code remotely.

Patch / fix

  • quassel Debian 14, Debian 13, Debian 12 1:0.12.5-1

debian advisories DEBIAN-CVE-2018-1000178

  • quassel Ubuntu 14.04 LTS 0.10.0-0ubuntu2.3
  • quassel Ubuntu 18.04 LTS 1:0.12.4-3ubuntu1.18.04.3

ubuntu advisories UBUNTU-CVE-2018-1000178

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

4.05% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • i.imgur.com https://i.imgur.com/JJ4QcNq.png referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns 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.