CVE-2020-1818
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Multiple out-of-bounds read vulnerabilities in Huawei's COPS protocol implementation could allow a remote attacker to disrupt service.
Vulnerability
The vulnerability is an out-of-bounds (OOB) read in the Common Open Policy Service (COPS) protocol decoding function of certain Huawei products. Affected products include IPS Module V500R001C30, V500R001C60, V500R005C00, and others as listed in the advisory [1]. The bug occurs when processing a specially crafted incoming data packet, leading to an OOB read.
Exploitation
An attacker can exploit these vulnerabilities by sending a crafted COPS packet to an affected device. No authentication is required, as the vulnerability is triggered during packet decoding. The attacker needs network access to the device's COPS service.
Impact
Successful exploitation could cause a denial of service (DoS) by disrupting the affected device's service. The OOB read may lead to a crash or hang. No code execution or data disclosure is mentioned in the available references.
Mitigation
Huawei has released software updates to fix these vulnerabilities. The resolved versions include V500R005C20SPC500 for IPS Module [1]. Users should upgrade to the fixed versions. No workarounds are provided. The advisory is available at [1].
AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
9- Range: V500R001C30
- Range: V500R002C00
- Huawei/NIP6800v5Range: V500R001C60
- Range: V500R001C30
- Range: V500R001C30
- Range: V500R001C30
- Huawei/USG6000Vv5Range: V500R003C00
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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