CVE intelligence and bounded remediation
CVE-2021-25158 — Arubanetworks Instant security vulnerability
A remote arbitrary file read vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.
- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Published
- 2021-03-30
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-362
Affected products
- arubanetworks / instant
- siemens / scalance_w1750d_firmware
Showing 2 representative product identities from 6 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
Race condition, TOCTOU, and lifecycle synchronization
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Check exposure
- Map concurrent actors, shared state, lock boundaries, signals, callbacks, retries, and check-then-use sequences in the affected path.
- Determine whether untrusted users can influence timing, object names, filesystem state, or repeated state transitions.
- Identify clustered and multi-process behavior that repository-local tests may not represent.
Remediate safely
- Make the sensitive state transition atomic or protect it with a consistently ordered synchronization primitive.
- Perform authorization and invariant checks on the same authoritative object and transaction used for the operation.
- Use unique private resources, safe ownership transfer, and idempotent operations; add deterministic concurrency regression tests.
Authoritative sources
Complete CVE record and remediation plan
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