CVE intelligence and bounded remediation

CVE-2016-8786 — Huawei S12700 Firmware security vulnerability

High CVSS 7.8

Huawei S12700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, S5700 V200R006C00, V200R007C00, V200R008C00, S6700 V200R008C00, S7700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, S9700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00 have a denial of service (DoS) vulnerability. Due to the lack of input validation, a remote attacker may craft a malformed Resource Reservation Protocol (RSVP) packet and send it to the device, causing a few buffer overflows and occasional device restart.

Severity
High
CVSS
7.8 (2.0)
Published
2018-03-09
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-20

Affected products

  • huawei / s12700_firmware / v200r005c00
  • huawei / s12700_firmware / v200r006c00
  • huawei / s12700_firmware / v200r007c00
  • huawei / s12700_firmware / v200r008c00
  • huawei / s5700_firmware / v200r006c00
  • huawei / s5700_firmware / v200r007c00

Showing 6 representative product identities from 22 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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