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CVE-2011-0404

77
FAUCET Score

CVE-2011-0404 describes a stack-based buffer overflow vulnerability in NetSupport Manager Agent for Linux, Solaris, and Mac OS X versions 11.00 and 9.50 respectively. This flaw allows remote attackers to execute arbitrary code by sending a long control hostname to TCP port 5405. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code is publicly available via Metasploit modules and ExploitDB, indicating a high likelihood of exploitation, despite a lack of community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
9.50CPE matchmatch criteria
cpe:2.3:a:netsupport:netsupport_manager_agent:9.50:*:solaris:*:*:*:*:*
11.00CPE matchmatch criteria
cpe:2.3:a:netsupport:netsupport_manager_agent:11.00:*:linux:*:*:*:*:*
11.00CPE matchmatch criteria
cpe:2.3:a:netsupport:netsupport_manager_agent:11.00:*:mac_os_x:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
64.74%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: NetSupport Manager Agent Remote Buffer Overflow · Jan 8, 2011
ExploitDB: EDB-16838 · Mar 3, 2011
This CVE's current EPSS score of 0.6474 is in the 99th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/fulldisclosure/2011-01/0090.html
osvdb.org / 70408
secunia.com / advisories/42794
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/64546
exploit-db.com / exploits/15937
Exploit
exploit-db.com / exploits/16838
ikkisoft.com / stuff/netsupport_linux.txt
Exploit
securityfocus.com / bid/45728
Exploit
securitytracker.com / id
vupen.com / english/advisories/2011/0062
Vendor Advisory