CVE-2021-29255
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp...
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp.microseven.com TCP port 7007. An attacker on the same network as the device can capture these credentials.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp.microseven.com TCP port 7007. An attacker on the same network as the device can capture these credentials.
- Record
CVE-2021-29255- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 2.9 Low
AV:A/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-522
- Updated
- 2026-11-02
CVE List No score
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp.microseven.com TCP port 7007. An attacker on the same network as the device can capture these credentials.
- Record
CVE-2021-29255- Updated
- 2026-11-02
EUVDEUVD-2021-15894 No score
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp.microseven.com TCP port 7007. An attacker on the same network as the device can capture these credentials.
- Record
EUVD-2021-15894- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p63h-rmxh-ffgc No score
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp...
MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp.microseven.com TCP port 7007. An attacker on the same network as the device can capture these credentials.
- Record
GHSA-p63h-rmxh-ffgc- Weakness
- CWE-522
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-29255 is a high vulnerability (CVSS 7.5) in Microseven Mym71080i-b Firmware, published March 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. No source names a fixed version.