CVE-2021-29255
HIGHCVSS 7.5/10EPSS 0.55%
Last modified
CVE-2021-29255 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microseven | Mym71080i-B Firmware | >= 2.0.5, <= 2.0.20 |
References
- https://blog.microseven.comVendor Advisory
- https://cybergladius.com/cve-2021-29255-vulnerability-disclosure/Exploit, Third Party Advisory
- https://blog.microseven.comVendor Advisory
- https://cybergladius.com/cve-2021-29255-vulnerability-disclosure/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-29255?
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.
How severe is CVE-2021-29255?
CVE-2021-29255 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.
How do I fix CVE-2021-29255?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-29255?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST