CVE-2011-4040 in the critical feed json
Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.
published 2011-11-21 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3992
- cvss
- 10.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 65.3%
- EPSS 65.3% chance of exploitation in 30 days, percentile 99.2%
- public exploits
- 3
- Metasploit, Exploit-DB
Summary
Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.
Timeline
- First public exploit (Metasploit exploit/windows/smtp/njstar_smtp_bof)
- Published
Exploit prediction
65.26% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Metasploit exploit/windows/smtp/njstar_smtp_bof NJStar Communicator 3.00 MiniSMTP Buffer Overflow metasploit exploit, normal rank, 2011-10-31
- EDB-18196 NJStar Communicator MiniSmtp - Buffer Overflow (ASLR Bypass) dos, 2011-12-03
- EDB-18057 NJStar Communicator 3.00 - MiniSMTP Server Remote (Metasploit) remote, 2011-10-31
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
kb.cert.org
/vuls/id/819630
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2011-4040
- NVD CVE-2011-4040
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.