PoC Index

CVE-2021-3321

HIGH 8.8EPSS 0.8%

Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

CVSS v3.1
8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
7.5 HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H
CVSS v2.0
5.8 MEDIUMAV:A/AC:L/Au:N/C:P/I:P/A:P
EPSS
0.76% chance of exploitation in the next 30 days, 53th percentile
Published
2021-10-12
Updated
2024-09-16

Proof-of-concept exploits (1)

References

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