CVE-2025-38077 [High] | Out-of-bounds Write in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store() If the 'buf' array received from the user contains an empty string, the 'length' variable will be zero. Accessing the 'buf' array element with index 'length - 1' will result in a buffer overflow. Add a check for an empty string. Found by Linux Verification Center (linuxtesting.org) with SVACE.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-14	0.01%	0.06%	+0.05%
2	2025-12-18	0.07%	0.01%	-0.05%
3	2025-10-17	—	0.07%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-14

0.01%

0.06%

+0.05%

2025-12-18

0.07%

0.01%

-0.05%

2025-10-17

—

0.07%

—

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-2025-38077

vendor	priority	summary	link
`debian`	unimportant	CVE-2025-38077 unimportant 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-2025-38077
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2025-38077
`suse`	medium	—	https://www.suse.com/security/cve/CVE-2025-38077/
`ubuntu`	medium	CVE-2025-38077 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, released 169, ignored 164, not-affected 67, needed 3, needs-triage 2, pending 1.	https://ubuntu.com/security/CVE-2025-38077

Affected software / configurations for CVE-2025-38077

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.11, < 5.15.185	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 6.1.141	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.2, < 6.6.93	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.31	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.14.9	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc1::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc3::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc4::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc5::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc6::::::
linux	linux_kernel	6.15	cpe:2.3:o:linux:linux_kernel:6.15:rc7::::::
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

References for CVE-2025-38077

URL	Tags
https://git.kernel.org/stable/c/4e89a4077490f52cde652d17e32519b666abf3a6	Patch
https://git.kernel.org/stable/c/60bd13f8c4b3de2c910ae1cdbef85b9bbc9685f5	Patch
https://git.kernel.org/stable/c/8594a123cfa23d708582dc6fb36da34479ef8a5b	Patch
https://git.kernel.org/stable/c/97066373ffd55bd9af0b512ff3dd1f647620a3dc	Patch
https://git.kernel.org/stable/c/f86465626917df3b8bdd2756ec0cc9d179c5af0f	Patch
https://git.kernel.org/stable/c/fb7cde625872709b8cedad9b241e0ec3d82fa7d3	Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

URL

CVE-2025-38077 | platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store()

Exploit prediction scoring system (EPSS) score for CVE-2025-38077

Common vulnerability scoring system (CVSS) metrics for CVE-2025-38077

Weakness enumeration for CVE-2025-38077

OS Trackers for CVE-2025-38077

Affected software / configurations for CVE-2025-38077

References for CVE-2025-38077