CVE-2025-38540 | HID: quirks: Add quirk for 2 Chicony Electronics HP 5MP Cameras

In the Linux kernel, the following vulnerability has been resolved: HID: quirks: Add quirk for 2 Chicony Electronics HP 5MP Cameras The Chicony Electronics HP 5MP Cameras (USB ID 04F2:B824 & 04F2:B82C) report a HID sensor interface that is not actually implemented. Attempting to access this non-functional sensor via iio_info causes system hangs as runtime PM tries to wake up an unresponsive sensor. Add these 2 devices to the HID ignore list since the sensor interface is non-functional by design and should not be exposed to userspace.

Published: 2025-08-16 Last update: 2026-01-22 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-38540 is rated Low Risk (27.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2025-38540

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 2026-01-13 0.06% 0.05% -0.01%
2 2025-11-04 0.03% 0.06% +0.03%
3 2025-08-16 — 0.03% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-38540

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2025-38540

OS Trackers for CVE-2025-38540

vendor priority summary link
debian not yet assigned CVE-2025-38540 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2025-38540
redhat medium — https://access.redhat.com/security/cve/CVE-2025-38540
suse medium CVE-2025-38540 severity moderate: SUSE including 491 source package names (13.2-9.1:libsqlite3-0-3.49.1-1.1, 2.1.3-6.35:libsqlite3-0-3.49.1-1.1, …), 918 product×package rows across 164 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (164 product lines)): Fixed 615, Known Affected 231, Known Not Affected 28, First Fixed 25, Will Not Fix 19. https://www.suse.com/security/cve/CVE-2025-38540/
ubuntu medium CVE-2025-38540 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1414 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1017, ignored 165, released 165, needed 46, not-affected 17, needs-triage 2, pending 2. https://ubuntu.com/security/CVE-2025-38540

Affected software / configurations for CVE-2025-38540

Vendor Product Version Raw CPE
linux linux_kernel >= 3.8, < 5.4.296 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.5, < 5.10.240 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.11, < 5.15.189 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 6.1.146 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.99 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.12.39 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.13, < 6.15.7 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 6.16 cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
linux linux_kernel 6.16 cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
linux linux_kernel 6.16 cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2025-38540

URL Tags
https://git.kernel.org/stable/c/1b297ab6f38ca60a4ca7298b297944ec6043b2f4 Patch
https://git.kernel.org/stable/c/2b0931eee48208c25bb77486946dea8e96aa6a36 Patch
https://git.kernel.org/stable/c/35f1a5360ac68d9629abbb3930a0a07901cba296 Patch
https://git.kernel.org/stable/c/3ce1d87d1f5d80322757aa917182deb7370963b9 Patch
https://git.kernel.org/stable/c/54bae4c17c11688339eb73a04fd24203bb6e7494 Patch
https://git.kernel.org/stable/c/7ac00f019698f614a49cce34c198d0568ab0e1c2 Patch
https://git.kernel.org/stable/c/a2a91abd19c574b598b1c69ad76ad9c7eedaf062 Patch
https://git.kernel.org/stable/c/c72536350e82b53a1be0f3bfdf1511bba2827102 Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
cvelogic Threat Intelligence