CVE-2026-55238
- Source
- https://cve.org/CVERecord?id=CVE-2026-55238
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55238.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-55238
- Aliases
-
- GHSA-mg8j-x9rw-9xv3
- Downstream
- Published
- 2026-07-20T17:05:01.470Z
- Modified
- 2026-08-12T03:51:49.424954080Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- xrdp: Malformed Confirm Active capability sets cause out-of-bounds reads
- Details
-
xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of RDP Confirm Active PDU, where during the capability negotiation phase, the parser did not perform sufficient length validation for specific capability sets. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted RDP packet containing malformed capability data. Due to missing bounds checks, the xrdp process may perform out-of-bounds memory reads, which can result in the termination of the service (Denial of Service). However, since xrdp forks a new process for each connection by default, an out-of-bounds read causing a process crash is unlikely to bring down the entire xrdp service. This issue has been fixed in version 0.10.6.1.
- Database specific
{ "cwe_ids": [ "CWE-126" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55238.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/neutrinolabs/xrdp
Affected ranges
- Type
- GIT
- Repo
- https://github.com/neutrinolabs/xrdp
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*", "source": [ "AFFECTED_FIELD", "CPE_RANGE", "REFERENCES" ], "extracted_events": [ { "introduced": "0" }, { "fixed": "0.10.6.1" } ] }