What is the CVSS score of CVE-2021-30355?

CVE-2021-30355 has a CVSS 3.1 base score of 8.6 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H. EPSS exploitation probability: 6.9%.

Is there a public PoC exploit available for CVE-2021-30355?

Yes, a public proof-of-concept exploit is available for CVE-2021-30355. Prioritise patching immediately. EPSS: 6.9%.

Kindle Firmware CVE-2021-30355

HIGH

Improper Privilege Management (CWE-269)

2021-09-01 cve@checkpoint.com

Privilege Escalation Kindle Firmware

8.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.6 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 01, 2021 - 19:15 nvd

HIGH 8.6

DescriptionNVD

Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root.

AnalysisAI

Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Privilege Management (CWE-269), which allows attackers to escalate privileges to gain unauthorized elevated access. Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root. Affected products include: Amazon Kindle Firmware. Version information: version 5.13.4.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply principle of least privilege, validate privilege transitions, implement proper role separation.