CVE-2021-3319 json
DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses
published 2021-10-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26650
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses. Zephyr versions >= > v2.4.0 contain NULL Pointer Dereference (CWE-476), Attempt to Access Child of a Non-structure Pointer (CWE-588). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-94jg-2p6q-5364
Patch / fix
- zephyrproject zephyr 2.5.0
Exploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-94jg-2p6q-5364 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- zephyrproject-rtos zephyr
Classification
References
-
github.com
/zephyrproject-rtos/zephyr/security/advisories/GHSA-94jg-2p6q-5364
exploit, patch, third-party-advisory
Sources
- CVE List CVE-2021-3319
- NVD CVE-2021-3319
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