Back
CVE-2022-42335
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted…
High7.8EPSS 0.26%
- Published
- Updated
- Reserved
- Assigned by
- XEN
Description
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.26% · top 82% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
References (5)
- https://xenbits.xenproject.org/xsa/advisory-430.txt (opens in a new tab)x_transferred
- http://xenbits.xen.org/xsa/advisory-430.html (opens in a new tab)x_transferred
- [oss-security] 20230425 Xen Security Advisory 430 v2 (CVE-2022-42335) - x86 shadow paging arbitrary pointer dereference (opens in a new tab)mailing-listx_transferred
- FEDORA-2023-d28433ead1 (opens in a new tab)vendor-advisoryx_transferred
- GLSA-202402-07 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-42335)Record last updated .