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No exploitation reportedFix available

CVE-2018-20180

No exploitation reported by the sources we read.

  • Published2019-03-15
  • WeaknessCWE-191

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function rdpsnddbg_process() and results in memory corruption and probably even a remote code execution.

Timeline

dates in UTC
  1. 2019-03-1518:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-20180?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-20180?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Rdesktop
BranchAffectedFixed in
1.8≤ 1.8.3no fix published
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
9.0= 9.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • rdesktopUbuntu:18.04:LTSall versions · no fixed version listed
  • rdesktopUbuntu:16.04:LTSall versions · no fixed version listed
  • rdesktopSUSE:Package Hub 15 SP1all versions · fixed in 1.8.6-bp151.2.3.1
  • rdesktopopenSUSE:Tumbleweedall versions · fixed in 1.9.0-4.6
  • rdesktopopenSUSE:Leap 15.1all versions · fixed in 1.8.6-bp151.2.3.1
  • rdesktopMageia:6all versions · fixed in 1.8.4-1.mga6
  • rdesktopDebian:14all versions · fixed in 1.8.4-1
  • rdesktopDebian:13all versions · fixed in 1.8.4-1

19 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-20180 Red Hat Product Security3 known affected

    rdesktop: Remote code execution in rdpsnddbg_process

    rdesktop as a component of Red Hat Enterprise Linux 5 · rdesktop as a component of Red Hat Enterprise Linux 6 · rdesktop.src as a component of Red Hat Enterprise Linux 6

Full record on NVD

Fix

  1. No fix planned, says the vendor Red Hat Product Security CVE-2018-20180 · 3 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.09.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-191read 2026-10-23
  • FIRST EPSSEPSS score8.2 %2026-11-03
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-03-15
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-20180?

rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function rdpsnddbg_process() and results in memory corruption and probably even a remote code execution.

Is CVE-2018-20180 actively exploited?

Active exploitation of CVE-2018-20180 has not been confirmed. Its EPSS score was 8.2% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20180?

CVE-2018-20180 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record