01 Record

CVE-2021-47443

NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()

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

View raw JSON

02 Description

NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.4% 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

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

Red Hat severity

Low. 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

2024-05-22 06:19Z2 YR AGO

Last updated

2026-05-11 13:54Z3 MO AGO

Reserved

2024-05-21

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-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

e17da603e4813f00f5c5211a021eb4f526bdd5a8524b7b3ab77d67d4ed1eba8c

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < 429054ec51e648d241a7e0b465cf44f6633334c5, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < a67d47e32c91e2b10402cb8c081774cbf08edb2e, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < b7b023e6ff567e991c31cd425b0e1d16779c938b, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < 9881b0c860649f27ef2565deef011e516390f416, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < 7ab488d7228a9dceb2456867f1f0919decf6efed, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < 3f2960b39f22e26cf8addae93c3f5884d1c183c9, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < 564249219e5b5673a8416b5181875d828c3f1e8c, 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 to < 58e7dcc9ca29c14e44267a4d0ea61e3229124907, 3.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5
git.kernel.orghttps://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e
git.kernel.orghttps://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b
git.kernel.orghttps://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416
git.kernel.orghttps://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed
git.kernel.orghttps://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9
git.kernel.orghttps://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c
git.kernel.orghttps://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907

01 Record index

CVE-2021-47443

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47443

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References