CVE-2012-6571: Huawei Ar 18-1x

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

The HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2) web management components on Huawei AR routers and S2000, S3000, S3500, S3900, S5100, S5600, and S7800 switches uses predictable Session ID values, which makes it easier for remote attackers to hijack sessions via a brute-force attack.

Affected products

• Huawei Ar 18-1x: up to and including r0130
• Huawei Ar 18-2x: up to and including r1712
• Huawei Ar 18-3x: up to and including r0118
• Huawei Ar 19/29/49: up to and including r2207
• Huawei Ar 28/46: up to and including r0311
• Huawei s2000: version r6305 only
• Huawei s2300: version r6305 only
• Huawei s2700: version r6305 only
• Huawei s3000: version r6305 only
• Huawei s3300: version r6305 only
• Huawei s3300hi: version r6305 only
• Huawei s3500: version r6305 only
• Huawei s3700: version r6305 only
• Huawei s3900: version r6305 only
• Huawei s5100: version r6305 only
• Huawei s5600: version r6305 only
• Huawei s7800: version r6305 only
• Huawei s8500: version r1631 only; version r1632 only

Published 2013-06-20. Last modified 2026-06-16.