Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2013-5959

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.

Security Impact Summary

CVE-2013-5959 is a security vulnerability that . Impacting 2 products from bluecoat, from bluecoat organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2013-09-28T19:55:03.243

Last Modified

2026-06-16T23:59:48.123

Status

Modified

Source

[email protected]

Severity

CVSSv2: 7.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	bluecoat	proxysgos	5.4	Yes
Operating System	bluecoat	proxysg	≤ 5.3	Yes
Operating System	bluecoat	proxysgos	5.3	Yes
Operating System	bluecoat	proxysgos	5.5	Yes
Operating System	bluecoat	proxysgos	6.1	Yes
Operating System	bluecoat	proxysgos	6.2	Yes
Operating System	bluecoat	proxysgos	6.3	Yes
Operating System	bluecoat	proxysgos	6.4	Yes
Operating System	bluecoat	proxysgos	6.5	Yes

References

http://osvdb.org/97767 ([email protected])
http://secunia.com/advisories/54991 Vendor Advisory ([email protected])
http://www.securitytracker.com/id/1029088 ([email protected])
https://kb.bluecoat.com/index?page=content&id=SA75 Vendor Advisory ([email protected])
http://osvdb.org/97767 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/54991 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1029088 (af854a3a-2127-422b-91ae-364da2661108)
https://kb.bluecoat.com/index?page=content&id=SA75 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For bluecoat's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.