2.0
Low
CVE-2026-120740 Hivex: hivex: denial of service via out-of-bounds read in big-data block processing
Description
A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).
CVSS 3.1 detail
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:LExploitable remotely over the network, with an administrator account and if a user takes an action; the impact on data or service is limited.
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- High
- Interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published |
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Not rated