What is the CVSS score of CVE-2021-29255?

CVE-2021-29255 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2021-29255?

Yes, a public proof-of-concept exploit is available for CVE-2021-29255. Prioritise patching immediately. EPSS: 0.6%.

Mym71080I B Firmware CVE-2021-29255

HIGH

Insufficiently Protected Credentials (CWE-522)

2021-03-26 cve@mitre.org

Information Disclosure Mym71080I B Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 26, 2021 - 18:15 nvd

HIGH 7.5

DescriptionNVD

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.

AnalysisAI

MicroSeven MYM71080i-B 2.0.5 through 2.0.20 devices send admin credentials in cleartext to pnp.microseven.com TCP port 7007. Rated high severity (CVSS 7.5), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Insufficiently Protected Credentials (CWE-522), which allows attackers to obtain user credentials due to weak protection mechanisms. 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. Affected products include: Microseven Mym71080I-B Firmware. Version information: through 2.0.20.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Hash passwords with strong algorithms (bcrypt, argon2), encrypt credentials in transit and at rest, never log credentials.