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TI-2011-04401 Aliases CVE-2011-5124GHSA-56f9-5546-c3g4

Stack-based buffer overflow in the BCAAA component before build 60258, as used by Blue…

Priority HIGH 75CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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).

Why it matters now

EPSS 0.54648 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:bluecoat:proxyone:*:*:*:*:*:*:*:*all versionsVulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:4.2.6:*:*:*:*:*:*:*4.2.6VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:4.3.2.3:*:*:*:*:*:*:*4.3.2.3VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.1:*:*:*:*:*:*:*5.1VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.1.6.1:*:*:*:*:*:*:*5.1.6.1VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.2:*:*:*:*:*:*:*5.2VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.2.2.4:*:*:*:*:*:*:*5.2.2.4VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.2.5.2:*:*:*:*:*:*:*5.2.5.2VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.3:*:*:*:*:*:*:*5.3VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.3.2.1:*:*:*:*:*:*:*5.3.2.1VulnerableBluecoat
  • cpe:2.3:a:bluecoat:proxyone:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:4.2.6:*:*:*:*:*:*:* Versions 4.2.6 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:4.3.2.3:*:*:*:*:*:*:* Versions 4.3.2.3 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.1:*:*:*:*:*:*:* Versions 5.1 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.1.6.1:*:*:*:*:*:*:* Versions 5.1.6.1 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.2:*:*:*:*:*:*:* Versions 5.2 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.2.2.4:*:*:*:*:*:*:* Versions 5.2.2.4 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.2.5.2:*:*:*:*:*:*:* Versions 5.2.5.2 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.3.2.1:*:*:*:*:*:*:* Versions 5.3.2.1 Vulnerable ·Bluecoat
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:bluecoat:proxysg:5.4:*:*:*:*:*:*:*5.4VulnerableBluecoat
cpe:2.3:a:bluecoat:proxysg:5.4.1.1:*:*:*:*:*:*:*5.4.1.1VulnerableBluecoat
cpe:2.3:h:bluecoat:proxysg:6:*:*:*:*:*:*:*6VulnerableBluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.4:*:*:*:*:*:*:* Versions 5.4 Vulnerable ·Bluecoat
  • cpe:2.3:a:bluecoat:proxysg:5.4.1.1:*:*:*:*:*:*:* Versions 5.4.1.1 Vulnerable ·Bluecoat
  • cpe:2.3:h:bluecoat:proxysg:6:*:*:*:*:*:*:* Versions 6 Vulnerable ·Bluecoat

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-5124
  2. 2026-10-03 Alias added: GHSA-56f9-5546-c3g4
  3. 2026-10-11 EPSS moved to the 99th percentile and above

References

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences