Answer in brief
CVE-2026-98499 records a High severity (CVSS 8.1) vulnerability in HID: wacom: fix OOB read in wacom_wac_pen_serial_enforce(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=83417206427bdf0fef9fa69957807194f25923c3 <9aa62f967b6a4bb30aa3b778e02c8a5ca6bcde51 || >=83417206427bdf0fef9fa69957807194f25923c3 <26471d954bbfbfb9032994f7f485802ee20e0582 || >=83417206427bdf0fef9fa69957807194f25923c3 <456afe4707e23cc114ad833197f63b52bb8fd1e7 || >=83417206427bdf0fef9fa69957807194f25923c3 <65e7c4b5366b770c60dfefac3f1d06e33a9e411e || >=83417206427bdf0fef9fa69957807194f25923c3 <eaa7d29341ef4b91e84ad097562982288a7c376c || >=83417206427bdf0fef9fa69957807194f25923c3 <c3129e6f26e18c0886ede7265f187a7ec289e1d1 || >=83417206427bdf0fef9fa69957807194f25923c3 <4b09b7c84b8633cd041181616bd15bf5e73c164d || >=83417206427bdf0fef9fa69957807194f25923c3 <9aa237cf66495b2426ddde8532e9b08a0ed83aaa | 9aa62f967b6a4bb30aa3b778e02c8a5ca6bcde51, 26471d954bbfbfb9032994f7f485802ee20e0582, 456afe4707e23cc114ad833197f63b52bb8fd1e7, 65e7c4b5366b770c60dfefac3f1d06e33a9e411e, eaa7d29341ef4b91e84ad097562982288a7c376c, c3129e6f26e18c0886ede7265f187a7ec289e1d1, 4b09b7c84b8633cd041181616bd15bf5e73c164d, 9aa237cf66495b2426ddde8532e9b08a0ed83aaa |
| Linux/Linuxgeneric | 4.16 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: HID: wacom: fix OOB read in wacom_wac_pen_serial_enforce() The 'wacom_wac_pen_serial_enforce()' function may calculate and pass an invalid offset to hid_field_extract(), resulting in memory reads at incorrect addresses -- possibly beyond the end of the report. If a field in the HID descriptor lists more usages than its Report Count actually reserves space for, the function's inner 'j' will walk past the end of the field: for (i = 0; i < report->maxfield; i++) { for (j = 0; j < report->field[i]->maxusage; j++) { ... value = hid_field_extract(hdev, raw_data + 1, offset + j * size, size); A descriptor listing 12288 usages against Report Count 1 has the loop extract the usage at index 12287 from bit offset 98296 -- about 12 KB past a 2-byte received report. The value is stored in wacom_wac->serial[0] and can reach userspace as an MSC_SERIAL event, making this an information disclosure. Clamp the loop to field->report_count, the number of value slots the report holds. Value slots past the last declared usage are still scanned; they reuse that usage (HID 1.11, 6.2.2.8). Verified on v6.12.105 with a UHID reproducer: a 2-byte report from such a descriptor trips KASAN before the patch and not after it.
Quoted source text, attributed separately from HOL analysis.