Out-of-bounds read in Sakura Editor - #VU145343
Published: August 25, 2026
Vulnerability identifier: #VU145343
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in GetLengthByMode in CClipboard.cpp when processing crafted clipboard data through a WSH macro. A remote attacker can trick the victim into running a crafted WSH macro to cause a denial of service.
Exploitation requires a WSH JScript macro that invokes Editor.GetClipboardByFormat(fmt, mode, 4).
Affected software
Sakura Editor
Remediation
Install security update from vendor's website.
Sakura Editor - update to 2.4.2