What is CVE-2011-5052?

CVE-2011-5052 is a vulnerability in Cocsoft Stream Down, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2012-01-04.

Is CVE-2011-5052 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Cocsoft Stream Down

CVE-2011-5052

Stack-based buffer overflow in CoCSoft Stream Down 6.8.0 allows remote web servers to execute arbitrary code via a long response to a download request.

Vulnerability class: Buffer Overflow

Published 2012-01-04 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.297 (98.1th percentile), scored 2026-10-02.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.297 · newest: 0.297 · change: 0.000

Affected products

Cocsoft Stream Down — versions 6.8

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

rapid7/metasploit-framework

References

www.exploit-db.com/exploits/18283 (Exploit, exploit)
secunia.com/advisories/47343 (Vendor Advisory, third-party-advisory)
osvdb.org/78043 (vdb-entry)
exchange.xforce.ibmcloud.com/vulnerabilities/72009 (vdb-entry)

Frequently asked questions

What is CVE-2011-5052?: CVE-2011-5052 is a vulnerability in Cocsoft Stream Down, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2012-01-04.
Is CVE-2011-5052 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.