Vulnerability Details : CVE-2021-3625
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
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-3625
- cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3625
0.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3625
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
9.6
|
CRITICAL | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H |
2.8
|
6.0
|
Zephyr Project |
CWE ids for CVE-2021-3625
-
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: vulnerabilities@zephyrproject.org (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3625
-
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363
Buffer overflow in Zephyr USB DFU DNLOAD · Advisory · zephyrproject-rtos/zephyr · GitHubExploit;Third Party Advisory
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