What is CVE-2026-15271?

CVE-2026-15271 is a high-severity vulnerability in Totolink A3000ru, classified under Incorrect Privilege Assignment. CVSS score: 7.5/10. Published 2026-07-09.

How severe is CVE-2026-15271?

High severity. CVSS v3 base score is 7.5 out of 10.

Privilege escalation in Totolink A3000ru

CVE-2026-15271

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.

Published 2026-07-09 · last modified 2026-09-03.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.9th percentile), scored 2026-10-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Totolink A3000ru — versions 20260906
Totolink A3100r — versions 20260906
Totolink A950rg — versions 20260906
Totolink Ac1200t10 — versions 20260906
Totolink Cp450 — versions 20260906
Totolink Cs185r T10 — versions 20260906
Totolink Ex200 — versions 20260906

Weakness classification (CWE)

References

vuldb.com/vuln/377214 (vdb-entry)
vuldb.com/vuln/377214/cti (signature, permissions-required)
vuldb.com/cve/CVE-2026-15271 (third-party-advisory)
vuldb.com/submit/852316 (third-party-advisory)
vuldb.com/submit/852317 (third-party-advisory)
vuldb.com/submit/852318 (third-party-advisory)
vuldb.com/submit/852319 (third-party-advisory)
vuldb.com/submit/852320 (third-party-advisory)
vuldb.com/submit/852321 (third-party-advisory)
vuldb.com/submit/852323 (third-party-advisory)

Frequently asked questions

What is CVE-2026-15271?: CVE-2026-15271 is a high-severity vulnerability in Totolink A3000ru, classified under Incorrect Privilege Assignment. CVSS score: 7.5/10. Published 2026-07-09.
How severe is CVE-2026-15271?: High severity. CVSS v3 base score is 7.5 out of 10.