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Medium severity5.9NVD Advisory· Published May 25, 2021· Updated Jun 17, 2026

CVE-2021-3320

CVE-2021-3320

Description

Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Zephyrproject Rtos/Zephyr3 versions
    cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*range: >=2.0.0,<=2.4.0
    • (no CPE)range: >=2.4.0
    • (no CPE)range: v2.4.0

Patches

Vulnerability mechanics

References

1

News mentions

0

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