CVE-2023-38907Public exploitNetwork attack vector

Unauthorized device control via stale encrypted messages

Published Sep 25, 2023 · Updated Aug 2, 2024

Message replay in TP-Link Tapo L530, L510E, L630, P100, and app 2.8.14 allows remote attackers to repeat captured device commands. The app and devices accept duplicate encrypted messages without checking their timestamps or uniqueness while the session key remains valid for up to 24 hours. Exploitation requires direct access to local Wi-Fi traffic and a captured user-generated message; replayed set commands can alter device state without the associated Tapo account.

CVSS severity7.5
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Message replay in TP-Link Tapo L530, L510E, L630, P100, and app 2.8.14 allows remote attackers to repeat captured device commands. The app and devices accept duplicate encrypted messages without checking their timestamps or uniqueness while the session key remains valid for up to 24 hours. Exploitation requires direct access to local Wi-Fi traffic and a captured user-generated message; replayed set commands can alter device state without the associated Tapo account.

The record

CVE
CVE-2023-38907
Published
Sep 25, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1040Network Sniffing

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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