CVE-2008-3436

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-08-01 · updated 2026-06-16
Weakness: CWE-94

Description

The GUP generic update process in Notepad++ before 4.8.1 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.

Affected products

Notepad++: through 1.0; through 1.1; through 1.2; through 1.3; through 1.4; through 1.5

References

http://archives.neohapsis.com/archives/bugtraq/2008-07/0250.html
http://www.infobyte.com.ar/down/Francisco%20Amato%20-%20evilgrade%20-%20ENG.pdf
http://www.infobyte.com.ar/down/isr-evilgrade-1.0.0.tar.gz
http://archives.neohapsis.com/archives/bugtraq/2008-07/0250.html
http://www.infobyte.com.ar/down/Francisco%20Amato%20-%20evilgrade%20-%20ENG.pdf
http://www.infobyte.com.ar/down/isr-evilgrade-1.0.0.tar.gz

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