8.1

CVE-2026-43051: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq

Modified
AliasesUBUNTU-CVE-2026-43051DEBIAN-CVE-2026-43051
Published 01-05-2026Last modified 19-10-2026

Vulnerability summary

CVE-2026-43051 is a high (CVSS 8.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.1, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.26%
0%100%
Low · -0.16 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 47 · Related 40
MGASA-2026-0108MGASA-2026-0110OPENSUSE-SU-2026:21555-1RHSA-2026:21556RHSA-2026:21557RHSA-2026:21706

Timeline

  1. 01-05-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq The wacom_intuos_bt_irq() function processes Bluetooth HID reports without sufficient bounds checking. A maliciously crafted short report can trigger an out-of-bounds read when copying data into the wacom structure. Specifically, report 0x03 requires at least 22 bytes to safely read the processed data and battery status, while report 0x04 (which falls through to 0x03) requires 32 bytes. Add explicit length checks for these report IDs and log a warning if a short report is received.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

Decrease -0.16 pp

From 0.42% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < d0ae84b3c9f3ea1a564eb1b7612113ca9fe8aada | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < 5b5b9730111808410e404ceac2fabd32eef92fbd | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < fa8901cb1f0b2113a342db93bd5684b59fe99dcf | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < 8bd690ac1242332c73cba10dacdad6c6642bbb94 | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < 41026bcc0fdf82605205c27935ef719cbc07193b | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < c8dc23c97680eebefde06da5858aaef1b37cf75d | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < 3d78386b144453c47e81bf62dc3601b757f02d99 | ≥ 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a, < 2f1763f62909ccb6386ac50350fa0abbf5bb16a9 | 3.3
  • linux_kernel≥ 3.3, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.168 | ≥ 6.2, < 6.6.134 | ≥ 6.7, < 6.12.81 | ≥ 6.13, < 6.18.22 | ≥ 6.19, < 6.19.12 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.12-1

3 vendors · 160 products

References

39 links
Show all 39 references