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Fencer Vulns
critical 9.8

CVE-2024-36048 json

QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.6, and 6.6.x through 6.7…

published 2024-05-18 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-35852

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.6, and 6.6.x through 6.7.x before 6.7.1 uses only the time to seed the PRNG, which may result in guessable values.

Patch / fix

  • qt qt_network_authorization 5.15.17, 6.2.13, 6.5.6, 6.71
  • qt6-networkauth Debian 14, Debian 13 6.7.2-2
  • qtnetworkauth-everywhere-src Debian 14, Debian 13 5.15.13-3

debian advisories DEBIAN-CVE-2024-36048

  • libqt5-qtnetworkauth Package Hub 15 SP5, openSUSE Leap 15.5 5.15.2+kde2-bp155.3.3.1
  • qt6-networkauth Package Hub 15 SP5, openSUSE Leap 15.5 6.4.2-bp155.2.3.1

opensuse advisories openSUSE-SU-2024:0143-1openSUSE-SU-2024:0138-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-36048 updated cvss 5.9

qtnetworkauth: badly seeded PRNG may result in guessable values

  • Red Hat Enterprise Linux 10 qt6-qtnetworkauth
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • qt qt_network_authorization

Classification

Weakness
  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

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.