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Case File

CVE-2011-1720

MEDIUM · CVSS 6.8 EPSS 21.48%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2011-05-13 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.8. Its EPSS score suggests a 21.5% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2011-1720
Severity
MEDIUM
CVSS
6.8
EPSS
21.48%

Original NVD Description

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.