CVE-2023-53879 MEDIUM

CVE-2023-53879: NVClient 5.0 Stack Buffer Overflow Vulnerability via User Configuration

Vendor Neonguvenlik

Product NVClient

Weakness CWE-121

Published December 15, 2025

Last update May 12, 2026

View on NVD All CVEs

CVSS base score

6.7/10

Attack vector Local

Attack complexity Low

Privileges required None

User interaction —

Confidentiality —

Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

NVClient 5.0 contains a stack buffer overflow vulnerability in the user configuration contact field that allows attackers to crash the application. Attackers can overwrite 846 bytes of memory by pasting a crafted payload into the contact box, causing a denial of service condition.

Key dates

02Disclosure timeline

December 15, 2025 CVE published

May 12, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-53879 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/121.html

Related vulnerabilities

04Related CVE

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