What’s Vulnerable › Vulnerabilities

CVE-2006-2659

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-05-30 · updated 2026-06-16

Description

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service (CPU consumption) via unknown vectors involving usernames that contain the "=" (equals) character, which is not properly handled during encoding.

Affected products

• Double Precision Incorporated Courier Mta: through 0.44.2; 0.37.3, 0.38.1, 0.40, 0.43, 0.43.1, 0.43.2 (+1)

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=368834
• http://secunia.com/advisories/20519
• http://secunia.com/advisories/20548
• http://secunia.com/advisories/20792
• http://secunia.com/advisories/21350
• http://security.gentoo.org/glsa/glsa-200608-06.xml
• http://securitytracker.com/id?1016248
• http://www.courier-mta.org/beta/patches/verp-fix/README.txt
• http://www.debian.org/security/2006/dsa-1101
• http://www.securityfocus.com/bid/18345
• http://www.vupen.com/english/advisories/2006/2214
• https://exchange.xforce.ibmcloud.com/vulnerabilities/26998

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