CVE-2021-24030 json
The fbgames protocol handler registered as part of Facebook Gameroom does not properly quote arguments passed to the executable.
published 2021-03-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10950
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Facebook Facebook Gameroom 1.26.0
Exploit prediction
1.75% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Facebook Facebook Gameroom
Classification
- Weakness
-
- CWE-88 Improper Neutralization of Argument Delimiters in a Command
References
-
facebook.com
/security/advisories/cve-2021-24030
vendor-advisory
Sources
- CVE List CVE-2021-24030
- NVD CVE-2021-24030
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