Is CVE-2011-2900 actively exploited?

CVE-2011-2900 has no public evidence of in-the-wild exploitation as of 2025-04-11.

What is the CVSS score for CVE-2011-2900?

CVE-2011-2900 has a CVSS score of 7.5 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P.

How do I patch CVE-2011-2900?

Patch guidance is available from shttpd security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2011-2900.

CVE-2011-2900 - remediation guidance & executive summary

Q: Which products are affected by CVE-2011-2900?

3 products: shttpd shttpd, valenok mongoose, yassl yasslews.

Description

Stack-based buffer overflow in the (1) put_dir function in mongoose.c in Mongoose 3.0, (2) put_dir function in yasslEWS.c in yaSSL Embedded Web Server (yasslEWS) 0.2, and (3) _shttpd_put_dir function in io_dir.c in Simple HTTPD (shttpd) 1.42 allows remote attackers to execute arbitrary code via an HTTP PUT request, as exploited in the wild in 2011.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: partial
Integrity: partial
Availability: partial
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: SHTTPD
Published: 8/5/2011
Last Modified: 4/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2011-2900

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary