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CVE-2011-5124

CRITICAL
10.0
CVSS Severity Score
EPSS Score0.0840%
EPSS Percentile23.17th
PublishedAug 26, 2012
Last ModifiedApr 29, 2026

Vulnerability Description

Stack-based buffer overflow in the BCAAA component before build 60258, as used by Blue Coat ProxySG 4.2.3 through 6.1 and ProxyOne, allows remote attackers to execute arbitrary code via a large packet to the synchronization port (16102/tcp).

Affected Platforms (CPE)

📦
Bluecoat

Proxyone

All versions
📦
Bluecoat

Proxysg

= 4.2.6
📦
Bluecoat

Proxysg

= 4.3.2.3
📦
Bluecoat

Proxysg

= 5.1
📦
Bluecoat

Proxysg

= 5.1.6.1
📦
Bluecoat

Proxysg

= 5.2
📦
Bluecoat

Proxysg

= 5.2.2.4
📦
Bluecoat

Proxysg

= 5.2.5.2
📦
Bluecoat

Proxysg

= 5.3
📦
Bluecoat

Proxysg

= 5.3.2.1
📦
Bluecoat

Proxysg

= 5.4
📦
Bluecoat

Proxysg

= 5.4.1.1
🔌
Bluecoat

Proxysg

= 6

References & Advisories

🔗 https://kb.bluecoat.com/index?page=content&id=SA55
🔗 https://kb.bluecoat.com/index?page=content&id=SA55

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