Blue Coat ProxySG before 6.2.14.1, 6.3.x, 6.4.x, and 6.5 before 6.5.2 allows remote…
Priority LOW 34CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · 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
Blue Coat ProxySG before 6.2.14.1, 6.3.x, 6.4.x, and 6.5 before 6.5.2 allows remote attackers to cause a denial of service (memory consumption and dropped connections) via a recursive href in an HTML page, which triggers a large number of HTTP RW pipeline pre-fetch requests.
Why it matters now
EPSS 0.01548 75th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bluecoat:proxysgos:5.4:*:*:*:*:*:*:* | 5.4 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysg:*:*:*:*:*:*:*:* | up to 5.3 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:5.3:*:*:*:*:*:*:* | 5.3 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:5.5:*:*:*:*:*:*:* | 5.5 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:6.1:*:*:*:*:*:*:* | 6.1 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:6.2:*:*:*:*:*:*:* | 6.2 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:6.3:*:*:*:*:*:*:* | 6.3 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:6.4:*:*:*:*:*:*:* | 6.4 | Vulnerable | Bluecoat |
| cpe:2.3:o:bluecoat:proxysgos:6.5:*:*:*:*:*:*:* | 6.5 | Vulnerable | Bluecoat |
- cpe:2.3:a:bluecoat:proxysgos:5.4:*:*:*:*:*:*:* Versions 5.4 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysg:*:*:*:*:*:*:*:* Versions up to 5.3 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:6.4:*:*:*:*:*:*:* Versions 6.4 Vulnerable ·Bluecoat
- cpe:2.3:o:bluecoat:proxysgos:6.5:*:*:*:*:*:*:* Versions 6.5 Vulnerable ·Bluecoat
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-5959
- 2026-10-03 Alias added: GHSA-3vj2-4g5h-4v38
References
Other 1
More Bluecoat Proxysg vulnerabilities
- TI-2011-04401 Stack-based buffer overflow in the BCAAA component before build 60258, as used by Blue… CVSS 2.0HIGH 10.0
- TI-2004-00066 The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c… CVSS 3.1HIGH 7.5
- TI-2010-04887 Blue Coat ProxySG before SGOS 4.3.4.1, 5.x before SGOS 5.4.5.1, 5.5 before SGOS 5.5.4.1… CVSS 2.0HIGH 9.3
- TI-2015-07066 Open redirect vulnerability in Blue Coat ProxySG 6.5 before 6.5.8.8 and 6.6 and Advanced… CVSS 3.0HIGH 7.4
- TI-2016-05645 Blue Coat Advanced Secure Gateway 6.6, CacheFlow 3.4, ProxySG 6.5 and 6.6 allows remote… CVSS 3.0HIGH 7.5
- TI-2004-00095 The SSL/TLS handshaking code in OpenSSL 0.9.7a, 0.9.7b, and 0.9.7c, when using Kerberos… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2013-5959 · CVE Program
- CVE-2013-5959 · NVD
- FIRST EPSS
- GHSA-3vj2-4g5h-4v38 · GitHub Advisory Database · CC BY 4.0
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