What is the CVSS score of CVE-2021-30139?

CVE-2021-30139 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.6%.

Apk Tools CVE-2021-30139

HIGH

Out-of-bounds Read (CWE-125)

2021-04-21 cve@mitre.org

Buffer Overflow Information Disclosure Apk Tools

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Apr 21, 2021 - 16:15 nvd

HIGH 7.5

DescriptionNVD

In Alpine Linux apk-tools before 2.12.5, the tarball parser allows a buffer overflow and crash.

AnalysisAI

In Alpine Linux apk-tools before 2.12.5, the tarball parser allows a buffer overflow and crash. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. In Alpine Linux apk-tools before 2.12.5, the tarball parser allows a buffer overflow and crash. Affected products include: Alpinelinux Apk-Tools. Version information: before 2.12.5.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.