CVE intelligence and bounded remediation

CVE-2015-2255 — Huawei Ar1220 Firmware security vulnerability

Medium CVSS 5.9

Huawei AR1220 routers with software before V200R005SPH006 allow remote attackers to cause a denial of service (board reset) via vectors involving a large amount of traffic from the GE port to the FE port.

Severity
Medium
CVSS
5.9 (3.0)
Published
2017-06-08
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-19

Affected products

  • huawei / ar1220_firmware / v200r005c00spc200
  • huawei / ar1220_firmware / v200r005c10spc500
  • huawei / ar1220_firmware / v200r005c20spc100
  • huawei / ar1220_firmware / v200r005c20spc200

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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