SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-5227

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 ✓HIGH 10.0EPSS 77.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 77.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
76.95% probability · 100th percentile
Public exploits
1 in Exploit-DB · verified · first 4 January 2013
CISA KEV
Not listed
Weakness
CWE-119
Affected
enterasys/netsight
Source
cve@mitre.org
EPSS trend
0%40%80%26 October 2026: 76.95%26 October 202626 October 2026

EPSS 77.0% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-23887source ↗Enterasys NetSight - 'nssyslogd.exe' Remote Buffer Overflow (Metasploit)windows · Metasploitremote4 January 2013yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.