How severe is CVE-2022-23478?

CVE-2022-23478 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 none, integrity high, and availability high.

Is CVE-2022-23478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23478?

CVE-2022-23478 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-2022-23478?

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-2022-23478 published?

CVE-2022-23478 was published on 2022-12-09 and last updated on 2026-06-17.

CVE-2022-23478

CVE-2022-23478 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
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 Write in xrdp_mm_trans_process_drdynvc_channel_open() function. There are no known workarounds for this issue. Users are advised to upgrade.

Frequently asked questions

What is CVE-2022-23478?: 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 Write in xrdp_mm_trans_process_drdynvc_channel_open() function. There are no known workarounds for this issue. Users are advised to upgrade.
How severe is CVE-2022-23478?: CVE-2022-23478 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 none, integrity high, and availability high.
Is CVE-2022-23478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23478?: CVE-2022-23478 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-2022-23478?: 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-2022-23478 published?: CVE-2022-23478 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…
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CVE-2022-23493 — Critical (CVSS 9.1): xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop…
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…

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