What is the CVSS score of CVE-2020-1876?

CVE-2020-1876 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: 0.8%.

Nip6800 Firmware CVE-2020-1876

HIGH

Out-of-bounds Write (CWE-787)

2020-02-28 psirt@huawei.com

Buffer Overflow Memory Corruption Nip6800 Firmware Secospace Usg6600 Firmware Usg9500 Firmware

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

Feb 28, 2020 - 19:15 nvd

HIGH 7.5

DescriptionNVD

NIP6800;Secospace USG6600;USG9500 with versions of V500R001C30; V500R001C60SPC500; V500R005C00SPC100 have an out-of-bounds write vulnerability. An unauthenticated attacker crafts malformed packets with specific parameter and sends the packets to the affected products. Due to insufficient validation of packets, which may be exploited to cause the process reboot.

AnalysisAI

NIP6800;Secospace USG6600;USG9500 with versions of V500R001C30; V500R001C60SPC500; V500R005C00SPC100 have an out-of-bounds write vulnerability. 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 Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. NIP6800;Secospace USG6600;USG9500 with versions of V500R001C30; V500R001C60SPC500; V500R005C00SPC100 have an out-of-bounds write vulnerability. An unauthenticated attacker crafts malformed packets with specific parameter and sends the packets to the affected products. Due to insufficient validation of packets, which may be exploited to cause the process reboot. Affected products include: Huawei Nip6800 Firmware, Huawei Secospace Usg6600 Firmware, Huawei Usg9500 Firmware.

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).