CVE-2022-3075
Published: September 8, 2022
Official Description
Google Chromium Mojo contains an insufficient data validation vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
CISA KEV Advisory
Google Chromium Mojo Insufficient Data Validation Vulnerability
Google Chromium Mojo contains an insufficient data validation vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in Google Chromium Mojo involves insufficient data validation, potentially allowing a remote attacker to escape the sandbox after compromising the renderer process via a crafted HTML page. Although a CVSS score is not provided, its HIGH severity and confirmed exploitation in the wild by CISA highlight its critical nature. The EPSS score of 0.02120, while low, is overridden by the confirmed active exploitation.
This vulnerability is actively being exploited in the wild, as confirmed by its inclusion in CISA's KEV catalog. It is remotely exploitable, allowing an attacker to potentially perform a sandbox escape if the renderer process is compromised.
Users of web browsers utilizing Chromium, including Google Chrome, Microsoft Edge, and Opera, should update to the latest versions. Implementing strong content security policies can also help reduce the risk of exploitation.
Technical Analysis
CVE-2022-3075 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-3075 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-3075 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1