CVE-2021-3625
moderate-risk
Published 2021-10-05
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
Do I need to act?
~
5.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.6/10
Critical
ADJACENT_NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
42
/ 100
moderate-risk
Severity
29/34 · Critical
Exploitability
8/34 · Low
Exposure
5/34 · Minimal