CVE intelligence and bounded remediation

CVE-2015-9196 — Qualcomm Fsm9055 Firmware security vulnerability

Critical CVSS 9.8

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Small Cell SoC FSM9055, MDM9635M, SD 400, and SD 800, improper input validation in tzbsp_ocmem can cause privilege escalation.

Severity
Critical
CVSS
9.8 (3.0)
Published
2018-04-18
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-20, CWE-264

Affected products

  • qualcomm / fsm9055_firmware
  • qualcomm / mdm9635m_firmware
  • qualcomm / sd_400_firmware
  • qualcomm / sd_800_firmware

Matched remediation archetype

Privilege escalation and unsafe privilege management

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

Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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