The affected product’s proprietary protocol CSC allows for calling numerous function codes. In order to call those function codes, the user must supply parameters. There is no sanitation on the value of the offset, which allows the client to specify any offset and read out-of-bounds data.
Published 2021-10-22 12:15:08
Updated 2021-10-27 15:06:38
Source ICS-CERT
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-38451

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-38451

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.5
LOW AV:N/AC:M/Au:S/C:P/I:N/A:N
6.8
2.9
NIST
4.8
MEDIUM CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
1.2
3.6
ICS-CERT
5.7
MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
2.1
3.6
NIST

CWE ids for CVE-2021-38451

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: ics-cert@hq.dhs.gov (Primary)

References for CVE-2021-38451

Products affected by CVE-2021-38451

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