How severe is CVE-2022-23493?

CVE-2022-23493 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2022-23493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23493?

CVE-2022-23493 primarily affects Neutrinolabs Xrdp. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-23493?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-23493 published?

CVE-2022-23493 was published on 2022-12-09 and last updated on 2026-06-17.

CVE-2022-23493

CVE-2022-23493 is a critical-severity vulnerability in Neutrinolabs Xrdp with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Neutrinolabs Xrdp
Published: 2022-12-09
Last modified: 2026-06-17

Description

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a Out of Bound Read in xrdp_mm_trans_process_drdynvc_channel_close() function. There are no known workarounds for this issue. Users are advised to upgrade.

Frequently asked questions

What is CVE-2022-23493?: xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a Out of Bound Read in xrdp_mm_trans_process_drdynvc_channel_close() function. There are no known workarounds for this issue. Users are advised to upgrade.
How severe is CVE-2022-23493?: CVE-2022-23493 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2022-23493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23493?: CVE-2022-23493 primarily affects Neutrinolabs Xrdp. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-23493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-23493 published?: CVE-2022-23493 was published on 2022-12-09 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

More vulnerabilities in Neutrinolabs Xrdp

CVE-2013-1430 — Critical (CVSS 9.8): An issue was discovered in xrdp before 0.9.1. When successfully logging in using RDP into an xrdp session, the file…
CVE-2026-33689 — Critical (CVSS 9.1): xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the…
CVE-2026-33516 — Critical (CVSS 9.1): xrdp is an open source RDP server. Versions through 0.10.5 contain an out-of-bounds read vulnerability during the RDP…
CVE-2025-68670 — Critical (CVSS 9.1): xrdp is an open source RDP server. xrdp before v0.10.5 contains an unauthenticated stack-based buffer overflow…
CVE-2022-23480 — Critical (CVSS 9.1): xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop…
CVE-2022-23479 — Critical (CVSS 9.1): xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop…

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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