01 Record

CVE-2021-47652

video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()

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 ImpactpartialSuccessful exploitation gives limited 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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 17.5% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/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

2025-02-26 01:54Z1 YR AGO

Last updated

2026-05-11 13:58Z5 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

addc9e4e7d32902760f8ac4f0e6cf7ea6c5e630ddc6459b03f9493eb52ed407e

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < d1b6a1f0c23b7164250479bf92e2893291dca539, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < 0fd28daec73525382e5c992db8743bf76e42cd5c, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < da8b269cc0a2526ebeaccbe2484c999eb0f822cf, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < 64ec3e678d76419f207b9cdd338dda438ca10b1c, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < c420b540db4b5d69de0a36d8b9d9a6a79a04f05a, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < d396c651e2b508b6179bb678cc029f3becbf5170, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < 9280ef235b05e8f19f8bc6d547b992f0a0ef398d, 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 to < 1791f487f877a9e83d81c8677bd3e7b259e7cb27, 3.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/d1b6a1f0c23b7164250479bf92e2893291dca539
git.kernel.orghttps://git.kernel.org/stable/c/0fd28daec73525382e5c992db8743bf76e42cd5c
git.kernel.orghttps://git.kernel.org/stable/c/dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b
git.kernel.orghttps://git.kernel.org/stable/c/da8b269cc0a2526ebeaccbe2484c999eb0f822cf
git.kernel.orghttps://git.kernel.org/stable/c/64ec3e678d76419f207b9cdd338dda438ca10b1c
git.kernel.orghttps://git.kernel.org/stable/c/c420b540db4b5d69de0a36d8b9d9a6a79a04f05a
git.kernel.orghttps://git.kernel.org/stable/c/d396c651e2b508b6179bb678cc029f3becbf5170
git.kernel.orghttps://git.kernel.org/stable/c/9280ef235b05e8f19f8bc6d547b992f0a0ef398d
git.kernel.orghttps://git.kernel.org/stable/c/1791f487f877a9e83d81c8677bd3e7b259e7cb27

07 Fixed in

Debian 12

linux
Fixed in 5.17.3-1

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

Debian 13

linux
Fixed in 5.17.3-1

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

Debian 14

linux
Fixed in 5.17.3-1

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