01 Record

CVE-2021-47257

net: ieee802154: fix null deref in parse dev addr

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

net: ieee802154: fix null deref in parse dev addr

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

2024-05-21 14:19Z2 YR AGO

Last updated

2026-05-11 13:51Z3 MO AGO

Reserved

2024-04-10

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

d527819c686614b456a56e47b3917d8990eff0f1e9730f3cdd6604c4fc6a8e76

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxa26c5fd7622d4951425131d54a8c99f076fe2068 to < 1f95741981c899c4724647291fec5faa3c777185, a26c5fd7622d4951425131d54a8c99f076fe2068 to < c6998ccfefa652bac3f9b236821e392af43efa1e, a26c5fd7622d4951425131d54a8c99f076fe2068 to < 5f728ec65485625e30f46e5b4917ff023ad29ea0, a26c5fd7622d4951425131d54a8c99f076fe2068 to < d0f47648b87b6d5f204cb7f3cbce6d36dab85a67, a26c5fd7622d4951425131d54a8c99f076fe2068 to < c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627, a26c5fd7622d4951425131d54a8c99f076fe2068 to < fdd51e34f45311ab6e48d2147cbc2904731b9993, a26c5fd7622d4951425131d54a8c99f076fe2068 to < 9fdd04918a452980631ecc499317881c1d120b70, 4.4—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1f95741981c899c4724647291fec5faa3c777185
git.kernel.orghttps://git.kernel.org/stable/c/c6998ccfefa652bac3f9b236821e392af43efa1e
git.kernel.orghttps://git.kernel.org/stable/c/5f728ec65485625e30f46e5b4917ff023ad29ea0
git.kernel.orghttps://git.kernel.org/stable/c/d0f47648b87b6d5f204cb7f3cbce6d36dab85a67
git.kernel.orghttps://git.kernel.org/stable/c/c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627
git.kernel.orghttps://git.kernel.org/stable/c/fdd51e34f45311ab6e48d2147cbc2904731b9993
git.kernel.orghttps://git.kernel.org/stable/c/9fdd04918a452980631ecc499317881c1d120b70

01 Record index

CVE-2021-47257

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47257

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References