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CVE-2018-8791

24
FAUCET Score

CVE-2018-8791 describes an Out-of-Bounds Read vulnerability in rdesktop versions up to and including v1.8.3, specifically within the rdpdr_process() function, leading to an information leak. This vulnerability affects various Debian Linux distributions and the rdesktop client itself. It carries a CVSS v3.0 score of 7.5 (High), indicating a network-exploitable flaw with low attack complexity that can result in high confidentiality impact without requiring user interaction or privileges. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8.3CPE matchmatch criteria
cpe:2.3:a:rdesktop:rdesktop:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.83%
Probability of exploitation in next 30 days
EPSS Percentile
89.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0383 is in the 80th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: rdesktop
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: rdesktop

Vendor Advisories (1)

redhatCVE-2018-8791Moderate

rdesktop: Minor information leak in rdpdr_process

Jan 4, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-09/msg00040.html
github.com / rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/02/msg00030.html
Mailing ListThird Party Advisory
research.checkpoint.com / reverse-rdp-attack-code-execution-on-rdp-clients
Third Party Advisory
security.gentoo.org / glsa/201903-06
Third Party Advisory
debian.org / security/2019/dsa-4394
Third Party Advisory
securityfocus.com / bid/106938
Third Party AdvisoryVDB Entry