Is CVE-2026-54424 in the CISA KEV catalog?

No. CVE-2026-54424 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-54424?

CVE-2026-54424 has a CVSS v3 base score of 8.4 (HIGH).

What is the EPSS score for CVE-2026-54424?

CVE-2026-54424 has an EPSS score of 0.24% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-54424?

No published fix for CVE-2026-54424 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-54424

HIGH

8.4

CVSS v3

NVD

Description

An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is Parsec for Windows version 150-104a. A user can generate a situation where there is an instance of parsecd.exe running as NT AUTHORITY\SYSTEM with a user-controlled value of the AppData environment variable.

CWE-648

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.24%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Other references4

Related Vulnerabilities

Other CWE-648 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-14813	Critical	9.8	11%	-	Fix
CVE-2024-8785	Critical	9.8	9.5%	-	Fix
CVE-2026-20122	Medium	5.4	7.0%	KEV	Fix
CVE-2025-54766	Medium	5.3	6.9%	-	-
CVE-2025-54765	Medium	5.3	6.9%	-	-
CVE-2025-54767	Medium	6.5	5.3%	-	-

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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 2026-07-04.