Is CVE-2022-23493 in the CISA KEV catalog?

No. CVE-2022-23493 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-23493?

CVE-2022-23493 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2022-23493?

CVE-2022-23493 has an EPSS score of 0.89% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-23493?

Upgrade xrdp on debian 11 to 0.9.21.1-1~deb11u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-23493

CRITICAL

9.1

CVSS v3

NVD

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.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

xrdpDebian

Fixed in:0.9.21.1-1~deb11u1CVE-2022-23493

Fixed in:0.9.21.1-1CVE-2022-23493

xrdpUbuntu

Fixed in:0.6.0-1ubuntu0.1+esm3USN-6474-1

Fixed in:0.6.1-2ubuntu0.3+esm3USN-6474-1

Fixed in:0.9.5-2ubuntu0.1~esm2USN-6474-1

Fixed in:0.9.12-1ubuntu0.1+esm1USN-6474-1

Fixed in:0.9.17-2ubuntu2+esm1USN-6474-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploit Intelligence

0.89%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.