CVE-2025-38548 [High] | Security Vulnerability in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: hwmon: (corsair-cpro) Validate the size of the received input buffer Add buffer_recv_size to store the size of the received bytes. Validate buffer_recv_size in send_usb_cmd().

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-01-08	0.06%	0.02%	-0.04%
2	2025-12-16	0.02%	0.06%	+0.05%
3	2025-08-16	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-01-08

0.06%

0.02%

-0.04%

2025-12-16

0.02%

0.06%

+0.05%

2025-08-16

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

OS Trackers for CVE-2025-38548

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2025-38548 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-2025-38548
`redhat`	—	—	https://access.redhat.com/security/cve/CVE-2025-38548
`suse`	medium	CVE-2025-38548 severity moderate: SUSE including 493 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, …), 994 product×package rows across 179 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (179 product lines)): Fixed 615, Known Affected 231, Known Not Affected 123, First Fixed 25.	https://www.suse.com/security/cve/CVE-2025-38548/
`ubuntu`	medium	CVE-2025-38548 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, released 165, ignored 161, not-affected 63, needed 4, needs-triage 2, pending 2.	https://ubuntu.com/security/CVE-2025-38548

Affected software / configurations for CVE-2025-38548

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.9, < 5.10.241	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.11, < 5.15.190	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 6.1.147	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.2, < 6.6.100	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.40	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.15.8	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::::::
linux	linux_kernel	6.16	cpe:2.3:o:linux:linux_kernel:6.16:rc4::::::
linux	linux_kernel	6.16	cpe:2.3:o:linux:linux_kernel:6.16:rc5::::::
linux	linux_kernel	6.16	cpe:2.3:o:linux:linux_kernel:6.16:rc6::::::
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

References for CVE-2025-38548

URL	Tags
https://git.kernel.org/stable/c/0db770e2922389753ddbd6663a5516a32b97b743	Patch
https://git.kernel.org/stable/c/2771d2ee3d95700f34e1e4df6a445c90565cd4e9	Patch
https://git.kernel.org/stable/c/2e6f4d9cfbda52700c126c5a2b93dd2042e8680c	Patch
https://git.kernel.org/stable/c/3c4bdc8a852e446080adc8ceb90ddd67a56e1bb8	Patch
https://git.kernel.org/stable/c/495a4f0dce9c8c4478c242209748f1ee9e4d5820	Patch
https://git.kernel.org/stable/c/4eb5cc48399f89b63acdbfe912fa5c8fe2900147	Patch
https://git.kernel.org/stable/c/eda5e38cc4dd2dcb422840540374910ef2818494	Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Mailing List Third Party Advisory

URL

CVE-2025-38548 | hwmon: (corsair-cpro) Validate the size of the received input buffer

Exploit prediction scoring system (EPSS) score for CVE-2025-38548

Common vulnerability scoring system (CVSS) metrics for CVE-2025-38548

Weakness enumeration for CVE-2025-38548

OS Trackers for CVE-2025-38548

Affected software / configurations for CVE-2025-38548

References for CVE-2025-38548