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CVE-2011-0751

35
FAUCET Score

CVE-2011-0751 describes a directory traversal vulnerability in nhttpd (Nostromo webserver) versions prior to 1.9.4, affecting products like nazgul nostromo. This flaw allows unauthenticated remote attackers to execute arbitrary programs or read arbitrary files by injecting encoded directory traversal sequences (..%2f) into a URI. With a CVSS score of 7.5, this vulnerability is considered high severity due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While not on the KEV catalog or Hot List, and with no Metasploit or Nuclei modules, an ExploitDB entry (EDB-35466) confirms the existence of remote command execution exploit code, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.9.3CPE matchmatch criteria
cpe:2.3:a:nazgul:nostromo:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:nazgul:nostromo:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:nazgul:nostromo:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:nazgul:nostromo:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:nazgul:nostromo:0.4:*:*:*:*:*:*:*

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
3.66%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-35466 · Mar 5, 2011
This CVE's current EPSS score of 0.0366 is in the 80th percentile among its peer group of 51,485 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

osvdb.org / 71235
secunia.com / advisories/43775
securityreason.com / securityalert/8140
exchange.xforce.ibmcloud.com / vulnerabilities/66103
nazgul.ch / dev_nostromo.html
redteam-pentesting.de / advisories/rt-sa-2011-001
Exploit
securityfocus.com / archive/1/517026/100/0/threaded
securityfocus.com / bid/46880
vupen.com / english/advisories/2011/0674