LiveActive security incident?Get immediate response
CVE Record

CVE-2018-20181: rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer...

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

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This vulnerability affects the rdesktop RDP client, not the Windows RDP server. A malicious or compromised RDP server may be able to corrupt client memory when an old rdesktop client connects, with possible remote code execution. Business risk is highest for administrators or support teams using legacy rdesktop builds. Organizations are exposed if endpoints, jump boxes, admin workstations, or support tooling still use rdesktop 1.8.3 or older. Exposure is more concerning when users connect to third-party, untrusted, or potentially compromised RDP servers. Treat as a high-priority legacy client cleanup issue, especially for privileged users. The main business concern is compromise of the person connecting, not compromise of the RDP server they reach. Mitigation focus: Upgrade rdesktop through the relevant vendor or distribution security update channel.; Remove or replace legacy rdesktop versions where upgrade is not feasible.; Restrict use of vulnerable clients against untrusted or third-party RDP servers..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-20181 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.