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CVE-2026-6539: Use of Externally-Controlled Format String

🗓️ 30 Apr 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Format string injection in Notepad++ 8.9.3 Find Results panel enables DoS and info disclosure.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-6539
30 Apr 202620:31
–attackerkb
circl
Circl
CVE-2026-6539
26 Apr 202614:42
–circl
cnnvd
CNNVD
Notepad++ 格式化字符串错误漏洞
30 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-6539
30 Apr 202620:31
–cve
cvelist
Cvelist
CVE-2026-6539 Notepad++ 8.9.3 Format String Injection via nativeLang.xml
30 Apr 202620:31
–cvelist
euvd
EUVD
EUVD-2026-26436
30 Apr 202620:31
–euvd
nessus
Tenable Nessus
Notepad++ < 8.9.4 Multiple Vulnerabilities
30 Apr 202600:00
–nessus
nvd
NVD
CVE-2026-6539
30 Apr 202621:16
–nvd
ptsecurity
Positive Technologies
PT-2026-36185
30 Apr 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-6539
5 Jun 202619:32
–redhatcve
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28 Jul 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.4
CVSS 44.6
EPSS0.00194
SSVC
0