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Fencer Intel
high 7.5

CVE-2018-8791 json

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function rdpdr_process() that results in an information leak.

published 7y ago modified 4mo ago also EUVD-2018-20400

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function rdpdr_process() that results in an information leak.

Patch / fix

  • rdesktop Debian 14, Debian 13, Debian 12 1.8.4-1

debian advisories DEBIAN-CVE-2018-8791

  • rdesktop openSUSE Tumbleweed 1.9.0-4.6
  • rdesktop Package Hub 15 SP1, openSUSE Leap 15.1 1.8.6-bp151.2.3.1

opensuse advisories openSUSE-SU-2024:11298-1openSUSE-SU-2019:2135-1

  • rdesktop Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 1.8.6-r0

alpine advisories ALPINE-CVE-2018-8791

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rdesktop Arch Linux 1.8.4-1

arch linux advisories AVG-871

Is CVE-2018-8791 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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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-2018-8791 updated cvss 5.3

rdesktop: Minor information leak in rdpdr_process

  • Red Hat Enterprise Linux 5 rdesktop Red Hat Enterprise Linux 6 rdesktop
    affected: no fix planned “Will not fix”

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

Exploit prediction

3.83% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Check Point Software Technologies Ltd. rdesktop

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.