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CVE-2011-2900

42
FAUCET Score

CVE-2011-2900 describes a stack-based buffer overflow in the put_dir function of Mongoose 3.0, yaSSL Embedded Web Server (yasslEWS) 0.2, and Simple HTTPD (shttpd) 1.42. This vulnerability allows remote attackers to execute arbitrary code via a crafted HTTP PUT request. With a CVSS score of 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P), it is considered highly severe, requiring no authentication and having low attack complexity, potentially leading to full compromise of confidentiality, integrity, and availability. This vulnerability was exploited in the wild in 2011, with public exploit code available on ExploitDB, though it is not currently on the CISA KEV catalog and has minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.42CPE matchmatch criteria
cpe:2.3:a:shttpd:shttpd:1.42:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:valenok:mongoose:3.0:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:yassl:yasslews:0.2:*:*:*:*:*:*:*

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
13.26%
Probability of exploitation in next 30 days
EPSS Percentile
96.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-17669 · Aug 15, 2011
This CVE's current EPSS score of 0.1326 is in the 94th 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

lists.fedoraproject.org / pipermail/package-announce/2011-September/065273.html
lists.fedoraproject.org / pipermail/package-announce/2011-September/065505.html
lists.fedoraproject.org / pipermail/package-announce/2011-September/065537.html
code.google.com / p/mongoose/source/detail
Patch
secunia.com / advisories/45464
Vendor Advisory
secunia.com / advisories/45902
securityreason.com / securityalert/8337
exchange.xforce.ibmcloud.com / vulnerabilities/68991
openwall.com / lists/oss-security/2011/08/03/5
Patch
openwall.com / lists/oss-security/2011/08/03/9
Patch
securityfocus.com / bid/48980