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NVD / CVE Program· CNA Linux

CVE-2026-89627: HID: roccat: free buffered reports when destroying device

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 4cb3ff31d237ad1f515455c497ef07d7172d912b, 690da9177e64bcfda2f4c0b5b8465178e4a236d8, 943b8dc2c6044c01e36395f51bb809a4b6bdfd22; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 4cb3ff31d237ad1f515455c497ef07d7172d912b, 690da9177e64bcfda2f4c0b5b8465178e4a236d8, 943b8dc2c6044c01e36395f51bb809a4b6bdfd22; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccat_report_event() duplicates each report with kmemdup() and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused. The device destruction paths free struct roccat_device without releasing reports still stored in cbuf[]. This makes those allocations unreachable and leaks up to ROCCAT_CBUF_SIZE report buffers per device. Add a small destructor that frees every buffered report before freeing the device, and use it in both paths that can destroy a registered device.

—No exploit Fix available
Published
Sep 11, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.35affected
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before cebb20b9a29cfc90bf56e54337333084f85a69ddaffected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before 690da9177e64bcfda2f4c0b5b8465178e4a236d8affected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before b3cc411daa50b39ba5706492a80a5a0804d9c85faffected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before 4cb3ff31d237ad1f515455c497ef07d7172d912baffected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before 943b8dc2c6044c01e36395f51bb809a4b6bdfd22affected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before da00eac19feef209c9591e48c860afc2014603beaffected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before fbb5a60f5c31b5625f0d89a79912fbcb2559289baffected · git
    • 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 and later · before bbff0ccbff360a5498075525005f6a913239a3d7affected · git
    • before 2.6.35not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-89625Sep 11, 2026 · HID: sony: fix UAF of ghl_poke_timer / ghl_urb at driver unbind
    0Monitor
  • ← EarlierCVE-2026-89626Sep 11, 2026 · HID: sensor: custom: Fix field sysfs group cleanup on failure
    35Monitor
  • Later →CVE-2026-89628Sep 11, 2026 · HID: picolcd: clamp eeprom debugfs read to bytes actually received
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux4cb3ff31d237ad1f515455c497ef07d7172d912bVendor (CNA)
Linux Linux690da9177e64bcfda2f4c0b5b8465178e4a236d8Vendor (CNA)
Linux Linux943b8dc2c6044c01e36395f51bb809a4b6bdfd22Vendor (CNA)
Linux Linuxb3cc411daa50b39ba5706492a80a5a0804d9c85fVendor (CNA)
Linux Linuxbbff0ccbff360a5498075525005f6a913239a3d7Vendor (CNA)
Linux Linuxcebb20b9a29cfc90bf56e54337333084f85a69ddVendor (CNA)
Linux Linuxda00eac19feef209c9591e48c860afc2014603beVendor (CNA)
Linux Linuxfbb5a60f5c31b5625f0d89a79912fbcb2559289bVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records