HOMEVULNERABILITIESCVE-2026-4546
HIGH

CVE-2026-4546

CWE-426Published: March 22, 2026· Updated: Mar 23, 2026

7.0
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.3th

Official Description

A weakness has been identified in Flos Freeware Notepad2 4.2.25. This impacts an unknown function in the library TextShaping.dll. Executing a manipulation can lead to uncontrolled search path. The attack is restricted to local execution. The attack requires a high level of complexity. The exploitability is said to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2026-4546 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (4)

Quick Facts

CVE IDCVE-2026-4546
CVSS Score7.0 / 10
SeverityHIGH
WeaknessCWE-426
CISA KEVNo
EPSS (30d)0.01%
PublishedMar 22, 2026

Related CVEs (CWE-426)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-4546 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.