rdesktop versions up to and including v1.8.3 contain several Out-Of- Bounds Reads in the…
Priority LOW 39CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
rdesktop versions up to and including v1.8.3 contain several Out-Of- Bounds Reads in the file secure.c that result in a Denial of Service (segfault).
Why it matters now
EPSS 0.03595 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-20176
- 2026-10-03 Alias added: GHSA-32x7-fpgq-gpw8
References
More Rdesktop vulnerabilities
- TI-2008-01728 Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote… CVSS 2.0HIGH 9.3
- TI-2008-01729 Buffer overflow in the process_redirect_pdu (rdp.c) function in rdesktop 1.5.0 allows… CVSS 2.0HIGH 9.3
- TI-2018-14304 rdesktop versions up to and including v1.8.3 contain a Buffer Overflow over the global… CVSS 3.0CRITICAL 9.8
- TI-2018-14303 rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a… CVSS 3.0CRITICAL 9.8
- TI-2018-14302 rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a… CVSS 3.0CRITICAL 9.8
- TI-2018-14299 rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-20176 · CVE Program
- CVE-2018-20176 · NVD
- FIRST EPSS
- GHSA-32x7-fpgq-gpw8 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-20176 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences