CVE-2021-47257

Advisory lineage Upstream: 0 Downstream: 7
Analyzed
Published: 21 May 2024, 14:19
Last modified:11 May 2026, 13:51

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 May 2024, 14:19
Published
Vulnerability first disclosed
11 May 2026, 13:51
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: fix null deref in parse dev addr Fix a logic error that could result in a null deref if the user sets the mode incorrectly for the given addr type.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 2%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • linux•linux

    ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < 1f95741981c899c4724647291fec5faa3c777185 | ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < c6998ccfefa652bac3f9b236821e392af43efa1e | ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < 5f728ec65485625e30f46e5b4917ff023ad29ea0 | ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < d0f47648b87b6d5f204cb7f3cbce6d36dab85a67 | ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627 | ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < fdd51e34f45311ab6e48d2147cbc2904731b9993 | ≥ a26c5fd7622d4951425131d54a8c99f076fe2068, < 9fdd04918a452980631ecc499317881c1d120b70 | 4.4

  • linux•linux_kernel

    < 4.9.274 | ≥ 4.10, < 4.14.238 | ≥ 4.15, < 4.19.196 | ≥ 4.20, < 5.4.127 | ≥ 5.5, < 5.10.45 | ≥ 5.11, < 5.12.12 | 5.13:rc1 | 5.13:rc2 | 5.13:rc3 | 5.13:rc4

References (7)