CVE-2025-9725Public exploit

Root access via embedded admin password

Published Aug 31, 2025 · Updated Sep 2, 2025

Hard-coded credentials in Cudy LT500E firmware 2.3.0 through 2.3.12 allow local users to recover the root password from firmware. The embedded /etc/shadow entry assigns root the password admin under MD5-crypt, allowing recovery from the extracted SquashFS image. Exploitation requires access to the firmware and a reachable login service; the recovered credential grants administrative control of router configuration and commands.

CVSS severity2.0
Low
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in Cudy LT500E firmware 2.3.0 through 2.3.12 allow local users to recover the root password from firmware. The embedded /etc/shadow entry assigns root the password admin under MD5-crypt, allowing recovery from the extracted SquashFS image. Exploitation requires access to the firmware and a reachable login service; the recovered credential grants administrative control of router configuration and commands.

The record

CVE
CVE-2025-9725
Published
Aug 31, 2025
Updated
Sep 2, 2025
Vendor
Cudy
Product
LT500E
Classifications
CWE-255, CWE-259, T1078.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.3.0
  2. Affected versionversion=2.3.1
  3. Affected versionversion=2.3.10
  4. Affected versionversion=2.3.11
  5. Affected versionversion=2.3.12
  6. Affected versionversion=2.3.2
  7. Affected versionversion=2.3.3
  8. Affected versionversion=2.3.4
  9. Affected versionversion=2.3.5
  10. Affected versionversion=2.3.6
  11. Affected versionversion=2.3.7
  12. Affected versionversion=2.3.8
  13. Affected versionversion=2.3.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Cudy · LT500Eversion=2.3.0; version=2.3.1; version=2.3.10; version=2.3.11; version=2.3.12; version=2.3.2; version=2.3.3; version=2.3.4; version=2.3.5; version=2.3.6; version=2.3.7; version=2.3.8; version=2.3.9

Published CVSS scores

2.0VulDB CNACVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-255Credentials Management Errors
CWE-259Use of Hard-coded Password
T1078.001Valid Accounts: Default Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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