CVE-2025-71112 [High] | Out-of-bounds Read in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: net: hns3: add VLAN id validation before using Currently, the VLAN id may be used without validation when receive a VLAN configuration mailbox from VF. The length of vlan_del_fail_bmap is BITS_TO_LONGS(VLAN_N_VID). It may cause out-of-bounds memory access once the VLAN id is bigger than or equal to VLAN_N_VID. Therefore, VLAN id needs to be checked to ensure it is within the range of VLAN_N_VID.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-03-26	0.06%	0.02%	-0.04%
2	2026-02-13	0.02%	0.06%	+0.04%
3	2026-01-15	—	0.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-03-26

0.06%

0.02%

-0.04%

2026-02-13

0.02%

0.06%

+0.04%

2026-01-15

—

0.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.1	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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:H) Serious risk that confidential data gets exposed in a big 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	5.2	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.1

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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:H): Serious risk that confidential data gets exposed in a big 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

5.2

[email protected]

OS Trackers for CVE-2025-71112

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2025-71112 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-2025-71112
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2025-71112
`suse`	high	—	https://www.suse.com/security/cve/CVE-2025-71112/
`ubuntu`	medium	CVE-2025-71112 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1562 status rows across 10 suites (bionic, focal, jammy, noble, plucky, questing, resolute, trusty, upstream, xenial): DNE 1157, ignored 179, released 150, not-affected 34, needed 30, pending 12.	https://ubuntu.com/security/CVE-2025-71112

Affected software / configurations for CVE-2025-71112

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.3.1, < 5.10.248	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.11, < 5.15.198	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 6.1.160	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.2, < 6.6.120	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.64	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.18.3	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	5.3	cpe:2.3:o:linux:linux_kernel:5.3:-::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc4::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc5::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc6::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc7::::::
linux	linux_kernel	6.19	cpe:2.3:o:linux:linux_kernel:6.19:rc8::::::

References for CVE-2025-71112

URL	Tags
https://git.kernel.org/stable/c/00e56a7706e10b3d00a258d81fcb85a7e96372d6	Patch
https://git.kernel.org/stable/c/42c91dfa772c57de141e5a55a187ac760c0fd7e1	Patch
https://git.kernel.org/stable/c/46c7d9fe8dd869ea5de666aba8c1ec1061ca44a8	Patch
https://git.kernel.org/stable/c/6ef935e65902bfed53980ad2754b06a284ea8ac1	Patch
https://git.kernel.org/stable/c/91a51d01be5c9f82c12c2921ca5cceaa31b67128	Patch
https://git.kernel.org/stable/c/95cca255a7a5ad782639ff0298c2a486707d1046	Patch
https://git.kernel.org/stable/c/b7b4f3bf118f51b67691a55b464f04452e5dc6fc	Patch

URL

CVE-2025-71112 | net: hns3: add VLAN id validation before using

Exploit prediction scoring system (EPSS) score for CVE-2025-71112

Common vulnerability scoring system (CVSS) metrics for CVE-2025-71112

Weakness enumeration for CVE-2025-71112

OS Trackers for CVE-2025-71112

Affected software / configurations for CVE-2025-71112

References for CVE-2025-71112