Is CVE-2023-53963 in the CISA KEV catalog?

No. CVE-2023-53963 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-53963?

CVE-2023-53963 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-53963?

CVE-2023-53963 has an EPSS score of 3.03% (86th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2023-53963

CRITICALEPSS 86th pctl

9.8

CVSS v3

NVD

Description

SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary shell commands through the 'password' parameter. Attackers can exploit the login.php and index.php scripts by injecting shell commands via the 'password' POST parameter to execute commands with web server privileges.

CWE-78OS Command Injection

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.03%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-13.