What’s Vulnerable › Vulnerabilities

CVE-2020-1866

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-13 · updated 2026-06-17
• Weakness: CWE-125

Description

There is an out-of-bounds read vulnerability in several products. The software reads data past the end of the intended buffer when parsing certain crafted DHCP messages. Successful exploit could cause certain service abnormal. Affected product versions include:NIP6800 versions V500R001C30,V500R001C60SPC500,V500R005C00;S12700 versions V200R008C00;S2700 versions V200R008C00;S5700 versions V200R008C00;S6700 versions V200R008C00;S7700 versions V200R008C00;S9700 versions V200R008C00;Secospace USG6600 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500,V500R005C00;USG9500 versions V500R001C30SPC300,V500R001C30SPC600,V500R001C60SPC500,V500R005C00.

Affected products

• Huawei Nip6800 Firmware: v500r001c30, v500r001c60spc500, v500r005c00
• Huawei S12700 Firmware: v200r008c00
• Huawei S2700 Firmware: v200r008c00
• Huawei S5700 Firmware: v200r008c00
• Huawei S6700 Firmware: v200r008c00
• Huawei S7700 Firmware: v200r008c00
• Huawei S9700 Firmware: v200r008c00
• Huawei Technologies Co., Ltd. Secospace USG6600: v500r001c30spc200, v500r001c30spc600, v500r001c60spc500, v500r005c00
• Huawei USG9500: v500r001c30spc300, v500r001c30spc600, v500r001c60spc500, v500r005c00

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200122-09-eudemon-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200122-09-eudemon-en

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