CVE-2026-80765
Vulnerability Scoring
Analysis In Progress
CVE-2026-80765 Vulnerability Analysis & Exploit Details
CVE-2026-80765
Attack Complexity Details
-
Attack Complexity:
Attack Complexity Analysis In Progress
-
Attack Vector:
Attack Vector Under Analysis
-
Privileges Required:
None
No authentication is required for exploitation.
-
Scope:
Impact is confined to the initially vulnerable component.
-
User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2026-80765 Details
Status: Received on 04 Sep 2026, 16:18 UTC
Published on: 04 Sep 2026, 16:18 UTC
CVSS Release:
CVE-2026-80765 Vulnerability Summary
CVE-2026-80765: In the Linux kernel, the following vulnerability has been resolved: HID: hyperv: validate initial device info bounds The Hyper-V synthetic HID host supplies SYNTH_HID_INITIAL_DEVICE_INFO messages that contain a HID descriptor followed by the report descriptor bytes. mousevsc_on_receive_device_info() trusts bLength and wDescriptorLength without checking that the received packet contains both byte ranges. A malformed host or backend message can therefore make the guest read past the received VMBus packet while copying the report descriptor. Pass the received initial-device-info size into the parser and reject descriptor lengths that exceed the packet. Impact: A malicious Hyper-V host or backend can crash a guest by sending a short initial device-info message with an oversized HID report descriptor length.
Assessing the Risk of CVE-2026-80765
Access Complexity Graph
The exploitability of CVE-2026-80765 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2026-80765
No exploitability data is available for CVE-2026-80765.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2026-80765, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2026-80765, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
-
Confidentiality:
None
CVE-2026-80765 does not compromise confidentiality.
-
Integrity:
None
CVE-2026-80765 does not impact data integrity.
-
Availability:
None
CVE-2026-80765 does not affect system availability.
CVE-2026-80765 References
External References
- https://git.kernel.org/stable/c/2529737763cb4bcfcaf397beeea2664656c865b4
- https://git.kernel.org/stable/c/334271d3812ab3197c95b4593bc6745f8d189114
- https://git.kernel.org/stable/c/390d3d9c52a710fdc9de95a537747397c0c671d1
- https://git.kernel.org/stable/c/608f8fd8c0f7b6268da43509447802955f210aac
- https://git.kernel.org/stable/c/8614c043b11cc35ffebd35542ab4da275f8f923d
- https://git.kernel.org/stable/c/934b7778aa7b7c8f6bb073d2a73ba3674885bae0
- https://git.kernel.org/stable/c/c894143c508a7e063aab9f73c9e835ab40121283
- https://git.kernel.org/stable/c/e0d5d3e45e142b7ef7525654aaa54d3e986002a6
- https://git.kernel.org/stable/c/f84d777574b748b1a488723ca7be9d87a301a872
CWE Common Weakness Enumeration
Unknown
Protect Your Infrastructure against CVE-2026-80765: Combat Critical CVE Threats
Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.
Other 5 Recently Published CVEs Vulnerabilities
- CVE-2026-87919 – The Product XML Feed Manager for WooCommerce WordPress plugin before 3.1.1 does not restrict which object method its product shortcode may call, n...
- CVE-2026-87918 – The WPBot WordPress plugin before 8.5.7 does not perform any authorization or nonce check on several AJAX actions that relay prompts to its config...
- CVE-2026-87916 – The WPBot WordPress plugin before 8.6.0 does not perform any capability or nonce check on the AJAX action that lists stored chat sessions, allowin...
- CVE-2026-87894 – The Rox Appointment Booking WordPress plugin before 1.2.3 does not perform any authorization check on the endpoint that returns a booking's confir...
- CVE-2026-87892 – The Rox Appointment Booking WordPress plugin before 1.2.0 does not verify the order total or the selected payment method against its own server-si...