01 Record

CVE-2022-50408

wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.0% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-09-18 16:03Z1 YR AGO

Last updated

2026-08-05 08:58Z2 MO AGO

Reserved

2025-09-17

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

4838025e54856268da971a6f49ac99f2043ab99ad77921fbb50de9dbd58d1364

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < 1613a7b24f1a7467cb727ba3ec77c9a808383560, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < d79f4d903e14dde822c60b5fd3bedc5a289d25df, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < 49c742afd60f552fce7799287080db02bffe1db2, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < e01d96494a9de0f48b1167f0494f6d929fa773ed, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < 232d59eca07f6ea27307022a33d226aff373bd02, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < 27574a3f421c3a1694d0207f37c6bbf23d66978e, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < c369836cff98d3877f98c98e15c0151462812d96, b1a2a41126fc582a3d5613aa2d3e632b2eb1a2c4 to < 3f42faf6db431e04bf942d2ebe3ae88975723478, 3.9—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560
git.kernel.orghttps://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df
git.kernel.orghttps://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2
git.kernel.orghttps://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed
git.kernel.orghttps://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02
git.kernel.orghttps://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e
git.kernel.orghttps://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96
git.kernel.orghttps://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478

07 Fixed in

Debian 12

linux
Fixed in 6.0.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.0.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.0.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.