What is CVE-2022-33749?

CVE-2022-33749 is a medium-severity vulnerability in Xapi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2022-10-11.

How severe is CVE-2022-33749?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2022-33749 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Xapi

CVE-2022-33749

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 car…

EPSS: 0.009 (54.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Xapi — versions consult Xen advisory XSA-413
Xen Xapi

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

karimhabush/cyberowl

References

security@xen.org (Patch, Vendor Advisory)
security@xen.org (Patch, Vendor Advisory)
security@xen.org (mailing-list, Patch, Mailing List, Third Party Advisory)
security@xen.org (vendor-advisory)

Frequently asked questions

What is CVE-2022-33749?: CVE-2022-33749 is a medium-severity vulnerability in Xapi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2022-10-11.
How severe is CVE-2022-33749?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2022-33749 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.