CVE-2021-29255Public exploit

Admin credential disclosure via unencrypted cloud callback

Published Mar 26, 2021 · Updated Aug 3, 2024

Cleartext credential transmission in MicroSeven MYM71080i-B 2.0.5 through 2.0.20 allows attackers to capture admin credentials. The camera periodically sends its administrative username and password to pnp.microseven.com on TCP port 7007 in an unencrypted session. Network traffic visibility on the device's local network is required; captured credentials grant access to the camera's administrative web interface.

CVSS severity7.5
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential transmission in MicroSeven MYM71080i-B 2.0.5 through 2.0.20 allows attackers to capture admin credentials. The camera periodically sends its administrative username and password to pnp.microseven.com on TCP port 7007 in an unencrypted session. Network traffic visibility on the device's local network is required; captured credentials grant access to the camera's administrative web interface.

The record

CVE
CVE-2021-29255
Published
Mar 26, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1040
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.9NIST NVDAV:A/AC:M/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:A/AC:H/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
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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