CVE-2025-70798Public exploit

Root access via hard-coded device password

Published Mar 10, 2026 · Updated Mar 10, 2026

Hard-coded credentials in Tenda i24V3.0si firmware 3.0.0.5 allow local users to authenticate as root on the device. The read-only /etc_ro/shadow file embeds root password material, and authentication accepts the corresponding password instead of requiring a device-specific secret. Exploitation requires local access and yields root control over the device's data and operation.

CVSS severity8.4
High
EPSS probability0.18%
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 Tenda i24V3.0si firmware 3.0.0.5 allow local users to authenticate as root on the device. The read-only /etc_ro/shadow file embeds root password material, and authentication accepts the corresponding password instead of requiring a device-specific secret. Exploitation requires local access and yields root control over the device's data and operation.

The record

CVE
CVE-2025-70798
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-259, T1078
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-259Use of Hard-coded Password
T1078Valid 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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