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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | hivex | No fix yet | — |
| Debian 13 | hivex | No fix yet | — |
| Debian 12 | hivex | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | hivex | No fix yet | — |
| Ubuntu 26.04 LTS | hivex | No fix yet | — |
| Ubuntu 24.04 LTS | hivex | No fix yet | — |
| Ubuntu 22.04 LTS | hivex | No fix yet | — |
| Ubuntu 20.04 LTS | hivex | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | hivex | No fix yet | — |
| Ubuntu Pro 16.04 LTS | hivex | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | hivex | 1.3.24-4.1 | openSUSE-SU-2026:12458-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | hivex | No fix yet | — |
Advisories 1
- openSUSE-SU-2026:12458-1 hivex-1.3.24-4.1 on GA media SUSE / openSUSE Security Updates · Nov 7, 2026
References
- https://access.redhat.com/security/cve/CVE-2026-120740 vdb-entry
- RHBZ#2565405 issue-tracking