The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software.
Published 2021-11-22 19:15:08
Updated 2022-05-10 12:29:12
Source ICS-CERT
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-38448

Probability of exploitation activity in the next 30 days: 0.26%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 63 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-38448

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
4.6
MEDIUM AV:L/AC:L/Au:N/C:P/I:P/A:P
3.9
6.4
nvd@nist.gov
7.5
HIGH CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
0.9
6.0
ics-cert@hq.dhs.gov
7.6
HIGH CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
0.9
6.0
nvd@nist.gov

CWE ids for CVE-2021-38448

  • The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
    Assigned by: ics-cert@hq.dhs.gov (Primary)

References for CVE-2021-38448

Products affected by CVE-2021-38448

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