CVE-2023-27126Public exploit

Credential disclosure via reused AES key-IV pair

Published Jun 6, 2023 · Updated Jul 9, 2026

Weak credential protection in TP-Link Tapo C200 V3 (EU) firmware 1.1.22 Build 220725 allows physically proximate attackers to recover credentials. The wlan-manager binary uses the same embedded AES key and initialization vector across cameras to encrypt stored Wi-Fi and Tapo account data. Exploitation requires physical access to dump the camera's flash memory, after which the shared parameters decrypt the Wi-Fi password and account identifier.

CVSS severity4.6
Medium
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

Weak credential protection in TP-Link Tapo C200 V3 (EU) firmware 1.1.22 Build 220725 allows physically proximate attackers to recover credentials. The wlan-manager binary uses the same embedded AES key and initialization vector across cameras to encrypt stored Wi-Fi and Tapo account data. Exploitation requires physical access to dump the camera's flash memory, after which the shared parameters decrypt the Wi-Fi password and account identifier.

The record

CVE
CVE-2023-27126
Published
Jun 6, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1552.001
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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 vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6CISA-ADPCVSS:3.1/AV:P/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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1552.001Unsecured Credentials: Credentials In Files

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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