Is CVE-2025-43991 in the CISA KEV catalog?

No. CVE-2025-43991 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-43991?

CVE-2025-43991 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2025-43991?

CVE-2025-43991 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-43991?

Upgrade supportassist for business pcs to 4.5.3.25254 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-43991

MEDIUM

6.3

CVSS v3

NVD

Description

SupportAssist for Home PCs versions 4.8.2 and prior and SupportAssist for Business PCs versions 4.5.3 and prior, contain an UNIX Symbolic Link (Symlink) following vulnerability. A low privileged attacker with local access to the system could potentially exploit this vulnerability to delete arbitrary files only in that affected system.

CWE-61

How to fix

Remediation Available

supportassist for business pcsNVD

Affected:< 4.5.3.25254Fixed in:4.5.3.25254CVE-2025-43991derived from NVD

supportassist for home pcsNVD

Affected:< 4.8.2.29006Fixed in:4.8.2.29006CVE-2025-43991derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Vendor Advisory1

dell.com

Related Vulnerabilities

Other CWE-61 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-28189	Critical	10.0	7.2%	-	-
CVE-2024-28185	Critical	10.0	7.1%	-	-
CVE-2019-11249	Medium	6.5	3.7%	-	Fix
CVE-2019-11246	Medium	6.5	3.6%	-	Fix
CVE-2019-16775	High	7.7	3.3%	-	Fix
CVE-2022-3592	Medium	6.5	2.4%	-	Fix

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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 2025-11-04.