CVE-2019-15682: RDesktop version 1.8.4 contains multiple out-of-bound access read vulnerabilities in its code, which results i

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HIGH 7.5REMOTEDOWNGRADE

CVE-2019-15682 is a high-severity flaw (CVSS 7.5) affecting rdesktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

RDesktop version 1.8.4 contains multiple out-of-bound access read vulnerabilities in its code, which results in a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. These issues have been fixed in version 1.8.5

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-125
Published	2019-10-30
Last modified	2026-06-17

Publisher (CNA): Kaspersky Labs · Vendor: rdesktop

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-10-30 16:15 UTCPublished CVE record published
2026-06-17 02:20 UTCUpdated Record last modified

rdesktop rdesktop DOWNGRADE

Affected: 1.8.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.4

1. Check installed version

apt-cache policy rdesktop || rpm -q rdesktop || rdesktop --version

2. No fixed release: DOWNGRADE to a release before 1.8.4 (Debian / Ubuntu)

apt-cache madison rdesktop sudo apt install rdesktop=<VERSION_BEFORE_1.8.4> sudo apt-mark hold rdesktop

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list rdesktop sudo dnf downgrade rdesktop-<VERSION_BEFORE_1.8.4> sudo dnf versionlock add rdesktop

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-15682?

rdesktop: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-15682 being exploited?

CVE-2019-15682 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-15682 affect?

CVE-2019-15682 affects rdesktop. Severity is high (CVSS 7.5). RDesktop version 1.8.4 contains multiple out-of-bound access read vulnerabilities in its code, which results in a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. These issues have been fixed

How urgent is CVE-2019-15682?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-8800 CRITICAL 9.8 UPGRADE MITIGATE rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function ui_clip_handle_d
CVE-2018-8799 HIGH 7.5 UPGRADE MITIGATE rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function process_secondary_order
CVE-2018-8798 HIGH 7.5 UPGRADE MITIGATE rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function rdpsnd_process_ping() t
CVE-2018-8797 CRITICAL 9.8 UPGRADE MITIGATE rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function process_plane()
CVE-2018-8796 HIGH 7.5 UPGRADE MITIGATE rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function process_bitmap_updates(

References

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