Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2020-1877

NIP6800;Secospace USG6600;USG9500 with versions of V500R001C30; V500R001C60SPC500; V500R005C00SPC100 have an invalid pointer access vulnerability. The software system access an invalid pointer when administrator log in to the device and performs some operations. Successful exploit could cause certain process reboot.

  • Published: Feb 28, 2020
  • Updated: Nov 9, 2025
  • CVE: CVE-2020-1877
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4.4
  • AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.9
  • AV:L/AC:L/Au:N/C:N/I:N/A:C

CWEs:

Software From Fixed in
huawei / nip6800_firmware 500r001c30 500r001c30.x
huawei / nip6800_firmware 500r001c60spc500 500r001c60spc500.x
huawei / nip6800_firmware 500r005c00 500r005c00.x
huawei / secospace_usg6600_firmware 500r001c30spc200 500r001c30spc200.x
huawei / secospace_usg6600_firmware 500r001c30spc600 500r001c30spc600.x
huawei / secospace_usg6600_firmware 500r001c60spc500 500r001c60spc500.x
huawei / secospace_usg6600_firmware 500r005c00 500r005c00.x
huawei / usg9500_firmware 500r001c30spc200 500r001c30spc200.x
huawei / usg9500_firmware 500r001c30spc600 500r001c30spc600.x
huawei / usg9500_firmware 500r001c60spc500 500r001c60spc500.x
huawei / usg9500_firmware 500r005c00 500r005c00.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.