CVE-2011-5227

Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management...

10.0 HighPublic exploit

Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management Suite (NMS) before 4.1.0.80 allows remote attackers to execute arbitrary code via a long PRIO field in a message to UDP port 514.

Exploit likelihood

77.0%Down 0.7 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2011-5227
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-5227
Updated: 2026-11-02

EUVDEUVD-2011-5127 No score

Record: EUVD-2011-5127
Updated: 2026-11-03

GitHub AdvisoriesGHSA-r9gw-49fr-p9j4 No score

Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management...

Record: GHSA-r9gw-49fr-p9j4
Weakness: CWE-119
Updated: 2026-11-02

Affected products

enterasys netsight

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Enterasys NetSight - 'nssyslogd.exe' Remote Buffer Overflow (Metasploit)	2013-01-04
Metasploit	Enterasys NetSight nssyslogd.exe Buffer Overflow	2011-12-19

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-5227 is a high vulnerability (CVSS 10.0) in Enterasys Netsight, published October 25, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 77.0%, the 99th percentile. No source names a fixed version.