High severity · published May 1, 2026
CVE-2026-43048
HID: core: Mitigate potential OOB by removing bogus memset()
8.8
CVSS
0.3%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
HID: core: Mitigate potential OOB by removing bogus memset()
The memset() in hid_report_raw_event() has the good intention of
clearing out bogus data by zeroing the area from the end of the incoming
data string to the assumed end of the buffer. However, as we have
previously seen, doing so can easily result in OOB reads and writes in
the subsequent thread of execution.
The current suggestion from one of the HID maintainers is to remove the
memset() and simply return if the incoming event buffer size is not
large enough to fill the associated report.
Suggested-by Benjamin Tissoires <bentiss@kernel.org>
[bentiss: changed the return value]
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
2.6.15.1 before 6.18.22; 6.19 before 6.19.12; 2.6.15; 2.6.15; 2.6.15; 7.0; +3 more · source: NVD
LI
Linux · Linux
cd6104572bca9e4afe0dcdb8ecd65ef90b01297b before 218b93b7e284de1aa40a53f8f130f84f7da38858; cd6104572bca9e4afe0dcdb8ecd65ef90b01297b before b37e6019fe420335d884e30535549a25f084e00d; cd6104572bca9e4afe0dcdb8ecd65ef90b01297b before 8f71034649738fdeb6859b8d6cddf132024fac06; cd6104572bca9e4afe0dcdb8ecd65ef90b01297b before bd6e1d0230cca9575f5d118148f51e2a56b5373f; cd6104572bca9e4afe0dcdb8ecd65ef90b01297b before 0a3fe972a7cb1404f693d6f1711f32bc1d244b1c; 2.6.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43048
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43048
Patch
https://git.kernel.org/stable/c/0a3fe972a7cb1404f693d6f1711f32bc1d244b1c
git.kernel.org
https://git.kernel.org/stable/c/218b93b7e284de1aa40a53f8f130f84f7da38858
Patch
https://git.kernel.org/stable/c/8f71034649738fdeb6859b8d6cddf132024fac06
git.kernel.org
https://git.kernel.org/stable/c/b37e6019fe420335d884e30535549a25f084e00d
Patch
https://git.kernel.org/stable/c/bd6e1d0230cca9575f5d118148f51e2a56b5373f
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