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CVE-2022-33749

21
FAUCET Score

CVE-2022-33749 describes an unauthenticated denial-of-service vulnerability in Xen XAPI. An attacker can remotely exploit this by causing XAPI to exceed its file descriptor limit, preventing it from processing legitimate requests and tasks. Rated Medium severity (CVSS 5.3), this vulnerability requires no user interaction and has a low impact on availability. There is currently no evidence of active exploitation, nor are there any public exploit codes or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:xen:xapi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
56.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 35th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

security.gentoo.org / glsa/202402-07
xenbits.xenproject.org / xsa/advisory-413.txt
PatchVendor Advisory
openwall.com / lists/oss-security/2022/10/11/4
Mailing ListPatchThird Party Advisory
xenbits.xen.org / xsa/advisory-413.html
PatchVendor Advisory