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9.8

SysGauge 1.5.18 allows remote code execution via email check

CVE-2017-6416 · published 9 years ago
Summary

The SysGauge monitoring tool version 1.5.18 can be tricked by a malicious email server into running any code the attacker wants. By sending an unusually long response when SysGauge checks the SMTP service, an attacker could take control of the system. Upgrade to the latest patched version or apply the vendor's recommended fix as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
flexense sysgauge 1.5.18
cpe:2.3:a:flexense:sysgauge:1.5.18:*:*:*:*:*:*:*
Original advisory text
An issue was discovered in SysGauge 1.5.18. A buffer overflow vulnerability in SMTP connection verification leads to arbitrary code execution. The attack vector is a crafted SMTP daemon that sends ...
An issue was discovered in SysGauge 1.5.18. A buffer overflow vulnerability in SMTP connection verification leads to arbitrary code execution. The attack vector is a crafted SMTP daemon that sends a long 220 (aka "Service ready") string.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Exploitation
11% chance of attack within 30 days
Type
CWE-119Buffer Overflow
Timeline
Published6 Mar 2017
Updated22 Oct 2026
First seen29 Sep 2026
Sources
CVE-2017-6416 · NVD
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