There are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of…

Description

There are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some Huawei products. The specific decoding function may occur out-of-bounds read when processes an incoming data packet. Successful exploit of these vulnerabilities may disrupt service on the affected device. (Vulnerability ID: HWPSIRT-2018-12275,HWPSIRT-2018-12276,HWPSIRT-2018-12277,HWPSIRT-2018-12278,HWPSIRT-2018-12279,HWPSIRT-2018-12280 and HWPSIRT-2018-12289) The seven vulnerabilities have been assigned seven Common Vulnerabilities and Exposures (CVE) IDs: CVE-2020-1818, CVE-2020-1819, CVE-2020-1820, CVE-2020-1821, CVE-2020-1822, CVE-2020-1823 and CVE-2020-1824.

Scores

EPSS (exploitation in 30 days)

0.25% · top 83% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.7.

Weakness

• CWE-125 Out-of-bounds Read (opens in a new tab)All about CWE-125 and its CVEs

Affected products

• Huawei · IPS Module

  • affected V500R001C30
  • affected V500R001C60
  • affected V500R005C00

• Huawei · NGFW Module

  • affected V500R002C00
  • affected V500R002C20
  • affected V500R005C00

• Huawei · NIP6300

  • affected V500R001C30
  • affected V500R001C60
  • affected V500R005C00

• Huawei · NIP6600

  • affected V500R001C30
  • affected V500R001C60
  • affected V500R005C00

• Huawei · NIP6800

  • affected V500R001C60
  • affected V500R005C00

• Huawei · Secospace USG6300

  • affected V500R001C30
  • affected V500R001C60
  • affected V500R005C00

• Huawei · Secospace USG6500

  • affected V500R001C30
  • affected V500R001C60
  • affected V500R005C00

• Huawei · Secospace USG6600

  • affected V500R001C30
  • affected V500R005C00

• Huawei · USG6000V

  • affected V500R003C00

References (1)

• https://www.huawei.com/en/psirt/security-advisories/2020/huawei-sa-20191218-01-cops-en (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2020-1820](https://trackcve.app/badge/CVE-2020-1820.svg)](https://trackcve.app/cve/CVE-2020-1820)

Record last updated 31 Dec 2024, 17:17 UTC.