CVE-2026-80765: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-80765DEBIAN-CVE-2026-80765
Published 04-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-80765 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.7% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
MGASA-2026-0506OPENSUSE-SU-2026:11773-1SUSE-SU-2026:4282-1

Timeline

  1. 04-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.107-1 | < 7.1.12-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ b95f5bcb811e3905b5376f87789da8d097fee682, < e0d5d3e45e142b7ef7525654aaa54d3e986002a6 | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < 390d3d9c52a710fdc9de95a537747397c0c671d1 | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < 8614c043b11cc35ffebd35542ab4da275f8f923d | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < 334271d3812ab3197c95b4593bc6745f8d189114 | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < f84d777574b748b1a488723ca7be9d87a301a872 | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < 608f8fd8c0f7b6268da43509447802955f210aac | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < 2529737763cb4bcfcaf397beeea2664656c865b4 | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < c894143c508a7e063aab9f73c9e835ab40121283 | ≥ b95f5bcb811e3905b5376f87789da8d097fee682, < 934b7778aa7b7c8f6bb073d2a73ba3674885bae0 | 3.3

3 vendors · 172 products

References

14 links
Show all 14 references