CVE-2026-45877 | HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients During a warm reset flow, the cl->device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl->device->reference_count without a NULL check leads to a kernel panic. This issue was identified during multi-unit warm reboot stress clycles. Add a defensive NULL check for cl->device to ensure stability under such intensive testing conditions. KASAN: null-ptr-deref in range [0000000000000000-0000000000000007] Workqueue: ish_fw_update_wq fw_reset_work_fn Call Trace: ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp] ishtp_reset_handler+0x85/0x1a0 [intel_ishtp] fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]

Published: 2026-05-27 Last update: 2026-05-27 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2026-45877 is rated Low Risk (10/100): low exploitation likelihood (EPSS 0.20%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-45877

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.02% 0.20% +0.18%
2 2026-05-28 0.02%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-45877

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-45877

GitHub Security Advisory for CVE-2026-45877

GHSA-69w2-j9pm-3jxm · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: fix NULL...

OS Trackers for CVE-2026-45877

vendor priority summary link
debian not yet assigned CVE-2026-45877 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2026-45877
redhat low https://access.redhat.com/security/cve/CVE-2026-45877
suse medium CVE-2026-45877 severity moderate: SUSE including 17 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 48 product×package rows across 14 product lines (SUSE Linux Enterprise High Availability Extension 15 SP7, SUSE Linux Enterprise Live Patching 15 SP7, … (14 product lines)): Known Not Affected 48. https://www.suse.com/security/cve/CVE-2026-45877/
ubuntu medium CVE-2026-45877 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1422 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1024, ignored 170, needed 108, released 84, pending 18, not-affected 17, needs-triage 1. https://ubuntu.com/security/CVE-2026-45877

Affected software / configurations for CVE-2026-45877

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-45877

cvelogic Threat Intelligence