What’s Vulnerable › Vulnerabilities

CVE-2021-24030

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-10 · updated 2026-06-17
• Weakness: CWE-88

Description

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.

Affected products

• Facebook Gameroom: before 1.26.0 — fixed in 1.26.0

How to fix

Upgrade to a fixed version: Facebook Gameroom 1.26.0. Check the vendor advisory for mitigations.

References

• https://www.facebook.com/security/advisories/cve-2021-24030
• https://www.facebook.com/security/advisories/cve-2021-24030

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