CVE-2021-24030
The fbgames protocol handler registered as part of Facebook Gameroom does not properly quote...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-24030- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-88
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-24030- Weakness
- CWE-88
- Updated
- 2026-11-02
EUVDEUVD-2021-10950 No score
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.
- Record
EUVD-2021-10950- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rq4p-fxq5-65xc No score
The fbgames protocol handler registered as part of Facebook Gameroom does not properly quote...
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.
- Record
GHSA-rq4p-fxq5-65xc- Weakness
- CWE-88
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24030 is a critical vulnerability (CVSS 9.8) in Facebook Gameroom, published March 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 78th percentile. No source names a fixed version.