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CVE-2025-9731: Tenda AC9 Administrative shadow hard-coded credentials

Analyzed
Published 31-08-2025Last modified 02-09-2025

Vulnerability summary

CVE-2025-9731 is a high (CVSS 7.0) Use of Hard-coded Password vulnerability in tenda ac9_firmware. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
38/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.0/10
010
High · v3.1 (NVD)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 31-08-2025
    PublishedVulnerability first disclosed.
  2. 02-09-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability was determined in Tenda AC9 15.03.05.19. The impacted element is an unknown function of the file /etc_ro/shadow of the component Administrative Interface. This manipulation causes hard-coded credentials. It is possible to launch the attack on the local host. The attack's complexity is rated as high. The exploitability is regarded as difficult. The exploit has been publicly disclosed and may be utilized.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.14% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Yu

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Tenda1 product

1 vendor · 1 product

References

5 links