CVE-2026-41252
Heap overflow in xrdp vnc-any allows pre-auth DoS or remote code execution.
Is CVE-2026-41252 being exploited?
Not confirmed. CVE-2026-41252 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.61% probability of exploitation in the next 30 days.
How severe is CVE-2026-41252?
CVE-2026-41252 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-41252?
Yes. A fix has been recorded for CVE-2026-41252. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-41252 affect?
CVE-2026-41252 affects xrdp <= 0.10.6, Linux servers running xrdp in vnc-any mode. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-41252?
Upgrade to xrdp 0.10.6.1 or disable vnc-any and block untrusted VNC servers.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Pre-auth heap buffer overflow via crafted VNC RFB color map messages enabling DoS or possible remote code execution.
Immediate action required
- affected< 0.10.6.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.