Buffer overflow in Pmsoftware Simple Web Server
CVE-2012-10053
Simple Web Server 2.2 rc2 contains a stack-based buffer overflow vulnerability in its handling of the Connection HTTP header. When a remote attacker sends an overly long string in this header, the server uses vsprintf() without proper bounds checking, leading to a buffer overflow on the stack. This flaw allows remote attackers to execute arbitrary code with the privileges of the web server process. The vulnerability is triggered before authentication.
Vulnerability class: Buffer Overflow
Published · last modified .
EPSS exploit prediction
EPSS: 0.017 (76.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.017 · change: +0.005
Affected products
- Pmsoftware Simple Web Server — versions 2.2 rc2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/w… (exploit)
- www.exploit-db.com/exploits/19937 (exploit)
- www.exploit-db.com/exploits/20028 (exploit)
- ghostinthelab.wordpress.com/2012/07/19/simplewebserver-2-2-rc2-remote-buffer-ov… (technical-description, exploit)
- www.pmx.it/software/sws.asp (product)
- www.vulncheck.com/advisories/simple-web-server-connection-header-buffer-overflow (third-party-advisory)
Frequently asked questions
- What is CVE-2012-10053?
- CVE-2012-10053 is a vulnerability in Pmsoftware Simple Web Server, classified under Stack-based Buffer Overflow. Published 2025-08-08.
- Is CVE-2012-10053 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.