CVE-2026-120740VulnerabilityPublished 2 Nov 2026Updated 5 Nov 2026

hivex

Affects hivexSource GCVE Database

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Authoritative record:CVE-2026-120740· Low 2.0

Not known to be exploited · CVSS 2.0 Low.

Data as of 5 Nov 2026, 12:37 UTC

CVSS 3.1 base score

2.0Low

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (redhat)	CVSS 3.1	2.0

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L

Attack Vector: Network
Attack Complexity: High
Privileges Required: High
User Interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Ubuntu 26.10hivex`pkg:deb/ubuntu/hivex?arch=source&distro=stonking`Other threats	Affected =1.3.24-2.1build2 =1.3.24-3build0.1 =1.3.24-3build1	Fixed in–
Ubuntu 26.04 LTShivex`pkg:deb/ubuntu/hivex?arch=source&distro=resolute`Other threats	Affected 1.3.24-1build6 – 1.3.24-2build1 7 affected builds	Fixed in–
Ubuntu 24.04 LTShivex`pkg:deb/ubuntu/hivex?arch=source&distro=noble`Other threats	Affected 1.3.23-1build2 – 1.3.23-1build7 5 affected builds	Fixed in–
Ubuntu 22.04 LTShivex`pkg:deb/ubuntu/hivex?arch=source&distro=jammy`Other threats	Affected 1.3.19-1ubuntu3 – 1.3.21-1ubuntu5 4 affected builds	Fixed in–
Ubuntu 20.04 LTShivex`pkg:deb/ubuntu/hivex?arch=source&distro=focal`Other threats	Affected 1.3.18-1 – 1.3.18-2ubuntu0.1 6 affected builds	Fixed in–
Ubuntu 18.04 LTShivex`pkg:deb/ubuntu/hivex?arch=source&distro=bionic`Other threats	Affected 1.3.14-1build4 – 1.3.15-1ubuntu0.1 6 affected builds	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

The vendor advisory does not explicitly confirm patch availability or provide specific mitigation steps. Since the vulnerability requires high privileges and user interaction, limiting access and avoiding processing untrusted registry hive files can reduce risk. Monitor the vendor advisory for updates on patches or official fixes. No urgent remediation is indicated given the low severity and lack of known exploits.

Description

A vulnerability in hivex allows an attacker to cause an out-of-bounds memory read by supplying a specially crafted Windows registry hive file with malformed large data block lists. This can cause the application processing the file to crash, resulting in a denial of service. The issue affects multiple specific versions of hivex and has a low severity rating with a CVSS score of 2. No public exploits are known, and the vulnerability requires high privileges and user interaction to be exploited.

Impact

The vulnerability allows an attacker with high privileges and user interaction to cause a denial of service by crashing the application processing the specially crafted registry hive file. There is no impact on confidentiality or integrity. The out-of-bounds read could potentially leak memory contents, but this is not confirmed as exploitable beyond causing a crash. No known exploits are reported in the wild.

References

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