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Exploited vulnerability · CISA KEV

Is CVE-2022-3075 exploited? Yes: in CISA KEV since 8 Sep 2022

Gociux · Google Chromium Mojo · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-3075, Google Chromium Mojo Insufficient Data Validation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 8 Sep 2022. It affects Google Chromium Mojo. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 8 Sep 2022
ransomwareNot knownno confirmed use
EPSStop 10%more likely than most to be exploited
severity9.6CVSS 3.1 · critical
US federal due29 Sep 2022BOD 22-01 deadline

What it is

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.

VendorGoogle (77 exploited CVEs in KEV)
ProductChromium Mojo
VulnerabilityGoogle Chromium Mojo Insufficient Data Validation Vulnerability
WeaknessCWE-20
Published26 Sep 2022
Added to KEV8 Sep 2022
Reported by (CNA)Chrome

What to do

  1. Check whether you run it. Look for Chromium Mojo in your asset inventory, including appliances and cloud images. Stack check lists every exploited Google CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 26 Sep 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for Google.

Other exploited CVEs in Chromium Mojo

References

Questions

Is CVE-2022-3075 being exploited?

Yes. CISA added CVE-2022-3075 to the Known Exploited Vulnerabilities catalog on 8 Sep 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-3075 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-3075?

Apply updates per vendor instructions. Check Google's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Chromium Mojo and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in September 2022 · Google scorecard · act-now radar.

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