CVE intelligence and bounded remediation
CVE-2021-24030 — The fbgames protocol handler registered as part of Facebook Gameroom does not properly quote arguments passed to the executable
Critical
CVSS 9.8
The fbgames protocol handler registered as part of Facebook Gameroom does not properly quote arguments passed to the executable. That allows a malicious URL to cause code execution. This issue affects versions prior to v1.26.0.
- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Published
- 2021-03-10
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-88
Affected products
- facebook / gameroom
Matched remediation archetype
General vulnerability remediation
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
- Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
- Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.
Remediate safely
- Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
- Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
- Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.
Authoritative sources
Complete CVE record and remediation plan
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