Read the docs
TI-2017-04881 Aliases CVE-2017-7185GHSA-r945-w37w-79vf

Use-after-free vulnerability in the mg_http_multipart_wait_for_boundary function in…

Priority MEDIUM 47CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.12251 96th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:cesanta:mongoose_embedded_web_server_library:*:*:*:*:*:*:*:*up to 6.7VulnerableCesanta
cpe:2.3:o:cesanta:mongoose_os:*:*:*:*:*:*:*:*up to 1.2VulnerableCesanta
  • cpe:2.3:a:cesanta:mongoose_embedded_web_server_library:*:*:*:*:*:*:*:* Versions up to 6.7 Vulnerable ·Cesanta
  • cpe:2.3:o:cesanta:mongoose_os:*:*:*:*:*:*:*:* Versions up to 1.2 Vulnerable ·Cesanta

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-7185
  2. 2026-10-03 Alias added: GHSA-r945-w37w-79vf

References

Exploit 2

Patch 2

  • TI-2017-08561 Cross-site request forgery (CSRF) vulnerability in Mongoose Web Server before 6.9 allows… CVSS 3.0HIGH 8.8
  • TI-2018-14406 Use-after-free vulnerability in the mg_cgi_ev_handler function in mongoose.c in Cesanta… CVSS 3.0HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences