CVE-2022-33749

Name: CVE-2022-33749
Creator: NVD / NIST
Published: 2022-10-11T13:15:10.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2022-33749 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. XAPI open file limit DoS It is possible for an unauthenticated client on the network to cause XAPI to hit its file-descriptor limit. This causes XAPI to be unable to accept new requests for other (trusted) clients, and blocks XAPI from carrying out any tasks that require the opening of file descriptors.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

Description

XAPI open file limit DoS It is possible for an unauthenticated client on the network to cause XAPI to hit its file-descriptor limit. This causes XAPI to be unable to accept new requests for other (trusted) clients, and blocks XAPI from carrying out any tasks that require the opening of file descriptors.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.88%

54.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Xen	Xapi	All versions

References

http://www.openwall.com/lists/oss-security/2022/10/11/4Mailing List, Patch, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-413.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/202402-07
https://xenbits.xenproject.org/xsa/advisory-413.txtPatch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/10/11/4Mailing List, Patch, Third Party Advisory
http://xenbits.xen.org/xsa/advisory-413.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/202402-07
https://xenbits.xenproject.org/xsa/advisory-413.txtPatch, Vendor Advisory

Timeline

Published: Oct 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-33749?

How severe is CVE-2022-33749?

CVE-2022-33749 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2022-33749?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-33749?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST