Vulnerability Details : CVE-2021-20676
M-System DL8 series (type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0) allows remote authenticated attackers to bypass access restriction and conduct prohibited operations via unspecified vectors.
Products affected by CVE-2021-20676
- cpe:2.3:o:m-system:dl8-a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:m-system:dl8-b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:m-system:dl8-c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:m-system:dl8-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:m-system:dl8-e_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20676
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20676
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:P/A:N |
8.0
|
2.9
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-20676
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20676
-
https://jvn.jp/en/jp/JVN47497535/index.html
JVN#47497535: M-System DL8 contains multiple vulnerabilitiesThird Party Advisory
-
https://www.m-system.co.jp/download_w/dl_dl8updaterE.html
M-System -- DL8Updater: Web-Enabled Remote Terminal Unit Firmware UpdaterVendor Advisory
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