CVE Tools
Sign in

CVE-2026-62433

correct buffer checks for DM_OP hypercalls

Published: Jul 28, 2026Updated: Jul 28, 2026 Sources: CVE List NVDCWE-665
7.3HIGH
NVD MITRE
EPSS Score
0.3%
Top 82.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

Description

Parts of the DM_OP handling code assumes the caller has provided the required number of buffers for the given operation without any checking being done. As a result, certain operations might access stack rubble as structures are possibly uninitialized.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-665

Affected Products

Xen
oss-project·GBaka xapi, qemu
XenOn-prem
Cloud & SaaS / virtualization

Exploitability

Workaround Available
Is your org exposed to CVE-2026-62433?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://xenbits.xenproject.org/xsa/advisory-506.html
xenbits.xenproject.org
http://www.openwall.com/lists/oss-security/2026/07/28/22
openwall.com
http://xenbits.xen.org/xsa/advisory-506.html
xenbits.xen.org

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-62433 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows