Critical severity9.6NVD Advisory· Published Oct 5, 2021· Updated Jun 17, 2026
CVE-2021-3625
CVE-2021-3625
Description
Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363
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Affected products
3cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*range: >=2.5.0,<2.7.0
- (no CPE)range: >=v2.5.0
- (no CPE)range: v2.5.0
Patches
Vulnerability mechanics
References
1- github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363nvdExploitThird Party Advisory
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