What is CVE-2026-63832?

CVE-2026-63832 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, affecting Linux kernel versions from 6.12.13 onward and patched in 6.18.38, 7.1.3 and 7.2. CVE-2026-63832 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-63832?

CVE-2026-63832 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-63832?

Yes, CVE-2026-63832 has been patched. Fixed versions include 6.18.38, 7.1.3 and 7.2. If you are running Linux kernel 6.12.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-63832 actively exploited?

CVE-2026-63832 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-63832

High

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: add wcid publish check in mt76_sta_add Since mt7925_mac_sta_add publishes wcid, add publish check in mt76_sta_add to avoid reinitializing the wcid->poll_list. Found dev->sta_poll_list corruption when using mt7925 and 7.1-rc4. According to the corruption information, prev->next was changed to itself. wlan0: disconnect from AP 90:fb:5d:94:8b:e3 for new auth to 90:fb:5d:94:8b:e2 wlan0: authenticate with 90:fb:5d:94:8b:e2 (local address=84:9e:56:9c:7e:6b) wlan0: send auth to 90:fb:5d:94:8b:e2 (try 1/3) slab kmalloc-8k start ffff8c80958a6000 pointer offset 4160 size 8192 list_add corruption. prev->next should be next (ffff8c808a7488f8), but was ffff8c80958a7040. (prev=ffff8c80958a7040). mt76_wcid_add_poll+0x95/0xd0 [mt76] mt7925_mac_add_txs.part.0+0xa5/0xe0 [mt7925_common] mt7925_rx_check+0xa7/0xc0 [mt7925_common] mt76_dma_rx_poll+0x50d/0x790 [mt76] mt792x_poll_rx+0x52/0xe0 [mt792x_lib]

Package Linux Kernel

Published 2026-07-19

Last modified 2026-08-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected versions

Linux kernel versions 6.12.13, 6.13.2, 6.14 and later are affected. Fixed in 6.18.38, 7.1.3, 7.2 and their respective stable series.

Affected from

≥ 6.12.13 ≥ 6.13.2 ≥ 6.14

Fixed in

✓ 6.18.38 6.18.x ✓ 7.1.3 7.1.x ✓ 7.2

References

3 total

Details

CVE ID CVE-2026-63832

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-07-19

Modified 2026-08-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-63832?

CVE-2026-63832 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 6.12.13 onward and has been patched in 6.18.38, 7.1.3 and 7.2. CVE-2026-63832 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-63832?

CVE-2026-63832 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-63832?

Yes. CVE-2026-63832 has been patched. Fixed versions include 6.18.38, 7.1.3 and 7.2. If you are running Linux kernel 6.12.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-63832 actively exploited?

No. CVE-2026-63832 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.