CVE-2026-93826
HIGH 7.5In the Linux kernel, the following vulnerability has been resolved: HID: hidpp: fix potential UAF in hidpp_connect_event() If input_register_device() fails, we call input_free_device(), but keep stale pointer to the old device in hidpp->input, which could potentially lead to UAF. Fix that by resetting it to NULL before returning from hidpp_connect_event().
Severe if exploited (CVSS 7.5), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 14th percentile
Impact if exploited
7.5CVSS 3.1 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ⚠Access: Must sit on the same / adjacent network
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ⚠Complexity: Needs a race window or specific setup
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
Not classified.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References and research data (JSON)
Vendor product assessments
Showing 32 of 277 vendor product statements; 245 omitted. Read the full vendor advisory.
kernel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-core as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-modules-extra-matched as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-modules-extra-matched
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-debug as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-uki-virt as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-uki-virt
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel as a component of Red Hat Enterprise Linux 8 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-modules-extra as a component of Red Hat Enterprise Linux 8 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-modules-extra
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-modules-internal as a component of Red Hat Enterprise Linux 8 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-modules-internal
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
bpftool as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/bpftool
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-64k-modules as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-modules
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-debug-modules-partner as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-modules-partner
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-64k-debug as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-64k-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-modules-extra
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-kvm as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-kvm
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-zfcpdump-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-zfcpdump-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · known affected
Vendor assessment for this product only.
pkg:oci/ose-rhel-coreos-9?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-9
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-debug as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-devel as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-devel
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-headers as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-headers
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel.src as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel?arch=src
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00bpftool as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/bpftool
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-abi-whitelists
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-debug-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug-devel
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-headers as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-headers
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-rt as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-debug-devel
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-rt-doc as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-doc
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-rt-trace-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-trace-devel
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-tools as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-tools
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-tools-libs-devel
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00python-perf as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/python-perf
Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00
All CVSS metrics
- HIGH 7.5 v3.1 · CNA Primary
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - HIGH 7.5 v3.1 · NVD Secondary
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93826.json Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-86215 EUVD · EUVD-2026-86215
Technical & other
- https://git.kernel.org/stable/c/e03fd646adad7f97fa4429ec5f38cee9bde5276eCVE record · Linux · Updated 2026-10-03T10:57:57.986Z
NVD · CVE-2026-93826 · Updated 2026-10-03T11:17:52.437 - https://git.kernel.org/stable/c/5d7637f4d050d105177217e64b869f56f9825060CVE record · Linux · Updated 2026-10-03T10:57:57.986Z
NVD · CVE-2026-93826 · Updated 2026-10-03T11:17:52.437 - https://git.kernel.org/stable/c/3b8b2e58b078cd30e121401535541bb8a6d57133CVE record · Linux · Updated 2026-10-03T10:57:57.986Z
NVD · CVE-2026-93826 · Updated 2026-10-03T11:17:52.437 - https://git.kernel.org/stable/c/3303398cc2aa255ba251650a30024e11d48ea6c3CVE record · Linux · Updated 2026-10-03T10:57:57.986Z
NVD · CVE-2026-93826 · Updated 2026-10-03T11:17:52.437 - https://git.kernel.org/stable/c/6df6b1f2c49678211f65647c300bc51dda02893bCVE record · Linux · Updated 2026-10-03T10:57:57.986Z
NVD · CVE-2026-93826 · Updated 2026-10-03T11:17:52.437 - https://access.redhat.com/security/cve/CVE-2026-93826 Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2540538 Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-93826 Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-93826 Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00
- https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93826.mbox Red Hat · CVE-2026-93826 · Updated 2026-10-17T21:39:09+00:00