CVE-2011-3579
CWE-399Published: September 30, 2011· Updated: Jun 16, 2026
Official Description
server/webmail.php in IceWarp WebMail in IceWarp Mail Server before 10.3.3 allows remote attackers to read arbitrary files, and possibly send HTTP requests to intranet servers or cause a denial of service (CPU and memory consumption), via an XML external entity declaration in conjunction with an entity reference.
Technical Analysis
CVE-2011-3579 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2011-3579. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (14)
Quick Facts
Related CVEs (CWE-399)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-3579 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts