Vulnerability Details : CVE-2021-21777
An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.
Vulnerability category: Information leak
Products affected by CVE-2021-21777
- cpe:2.3:a:opener_project:opener:2.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21777
0.37%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21777
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.4
|
HIGH | AV:N/AC:L/Au:N/C:C/I:N/A:C |
10.0
|
9.2
|
NIST | |
|
8.6
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
3.9
|
4.0
|
Talos | |
|
10.0
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H |
3.9
|
5.8
|
NIST |
CWE ids for CVE-2021-21777
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-21777
-
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234
TALOS-2021-1234 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
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