9.8

CVE-2025-9533: totolink t10_firmware Improper Authentication

CVSS: 9.8v3.1CriticalAnalyzed
Published 27-08-2025Last modified 27-08-2025
Open JSON

Vulnerability summary

CVE-2025-9533 is a critical (CVSS 9.8) Improper Authentication vulnerability in totolink t10_firmware. EPSS estimates a 10.78% chance of exploitation in the next 30 days, higher than 95.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
10.78%
0%100%
Medium · +1.34 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 27-08-2025
    PublishedVulnerability first disclosed.
  2. 27-08-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Affected is an unknown function of the file /formLoginAuth.htm. The manipulation of the argument authCode with the input 1 leads to improper authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

10.78%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

+1.34 pp

From 9.44% on 21-09-2026

21-09-202621-10-2026
EPSS score
10.78%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    My Test

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Totolink1 product

1 vendor · 1 product

References

5 links