What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-15 · updated 2026-06-17
• Weakness: CWE-121

Description

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.

Affected products

• neonguvenlik NVClient: 5.0

References

• http://download.eyemaxdvr.com/DVST%20ST%20SERIES/CMS/Video%20Surveillance%20Management%20Software(V5.0).pdf
• https://www.exploit-db.com/exploits/51700
• https://www.vulncheck.com/advisories/nvclient-stack-buffer-overflow-vulnerability-via-user-configuration
• http://download.eyemaxdvr.com/DVST%20ST%20SERIES/CMS/Video%20Surveillance%20Management%20Software(V5.0).pdf
• https://www.exploit-db.com/exploits/51700

Get alerted when CVE-2023-53879 or the next vulnerability affects your stack