What’s Vulnerable › Vulnerabilities

CVE-2017-7185

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-04-10 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in the mg_http_multipart_wait_for_boundary function in mongoose.c in Cesanta Mongoose Embedded Web Server Library 6.7 and earlier and Mongoose OS 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a multipart/form-data POST request without a MIME boundary string.

Affected products

• Cesanta Mongoose Embedded Web Server Library: through 6.7
• Cesanta Software Mongoose-OS: through 1.2

References

• http://www.securityfocus.com/archive/1/540355/100/0/threaded
• http://www.securityfocus.com/bid/97370
• https://github.com/cesanta/mongoose-os/commit/042eb437973a202d00589b13d628181c6de5cf5b
• https://github.com/cesanta/mongoose/commit/b8402ed0733e3f244588b61ad5fedd093e3cf9cc
• https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CVE-2017-7185_mongoose_os_use_after_free.txt
• https://www.exploit-db.com/exploits/41826/
• http://www.securityfocus.com/archive/1/540355/100/0/threaded
• http://www.securityfocus.com/bid/97370
• https://github.com/cesanta/mongoose-os/commit/042eb437973a202d00589b13d628181c6de5cf5b
• https://github.com/cesanta/mongoose/commit/b8402ed0733e3f244588b61ad5fedd093e3cf9cc
• https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CVE-2017-7185_mongoose_os_use_after_free.txt
• https://www.exploit-db.com/exploits/41826/

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