CVE-2022-33749
XAPI open file limit DoS It is possible for an unauthenticated client on the network to cause...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2022-33749- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-770
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2022-33749- Updated
- 2026-11-02
EUVDEUVD-2022-36788 No score
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.
- Record
EUVD-2022-36788- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v88g-q782-jgp2
XAPI open file limit DoS It is possible for an unauthenticated client on the network to cause...
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.
- Record
GHSA-v88g-q782-jgp2- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-400, CWE-770
- Updated
- 2026-11-02
OSVALPINE-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 carrying out any tasks that require the opening of file descriptors.
- Record
ALPINE-CVE-2022-33749- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-03
OSV
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.
- Record
CVE-2022-33749- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
xenAlpine:v3.14 |
before 4.15.4-r0 | 4.15.4-r0 |
xenAlpine:v3.15 |
before 4.15.4-r0 | 4.15.4-r0 |
xenAlpine:v3.18 |
before 4.17.0-r0 | 4.17.0-r0 |
xenAlpine:v3.19 |
before 4.17.0-r0 | 4.17.0-r0 |
xenAlpine:v3.20 |
before 4.17.0-r0 | 4.17.0-r0 |
xenAlpine:v3.21 |
before 4.17.0-r0 | 4.17.0-r0 |
xenAlpine:v3.22 |
before 4.17.0-r0 | 4.17.0-r0 |
xenAlpine:v3.23 |
before 4.17.0-r0 | 4.17.0-r0 |
xenAlpine:v3.24 |
before 4.17.0-r0 | 4.17.0-r0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-33749 is a medium vulnerability (CVSS 5.3) in Xapi, published October 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.18%, the 67th percentile. Fixed in xen 4.15.4-r0.