What is the CVSS score of CVE-2022-35219?

CVE-2022-35219 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Health Insurance Web Service Component CVE-2022-35219

MEDIUM

Out-of-bounds Write (CWE-787)

2022-08-02 twcert@cert.org.tw

Memory Corruption Buffer Overflow Health Insurance Web Service Component

5.5

CVSS 3.1 · Vendor: cert

Severity by source

Vendor (cert) PRIMARY

5.5 MEDIUM

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

Primary rating from Vendor (cert) · only source for this CVE.

CVSS VectorVendor: cert

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Aug 02, 2022 - 16:15 cve.org

MEDIUM 5.5

DescriptionCVE.org

The NHI card’s web service component has a stack-based buffer overflow vulnerability due to insufficient validation for network packet key parameter. A LAN attacker with general user privilege can exploit this vulnerability to disrupt service.

AnalysisAI

The NHI card’s web service component has a stack-based buffer overflow vulnerability due to insufficient validation for network packet key parameter. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. The NHI card’s web service component has a stack-based buffer overflow vulnerability due to insufficient validation for network packet key parameter. A LAN attacker with general user privilege can exploit this vulnerability to disrupt service. Affected products include: Nhi Health Insurance Web Service Component.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).