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Case File

CVE-2017-2891

CRITICAL · CVSS 9.8 EPSS 2.76% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-11-07 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2017-2891
Severity
CRITICAL
CVSS
9.8
EPSS
2.76%

Original Filing — NVD Description

An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability.