Security News > 2025 > March > Critical Firefox, Tor Browser sandbox escape flaw fixed (CVE-2025-2857)

Google’s fixing of CVE-2025-2783, a Chrome zero-day vulnerability exploited by state-sponsored attackers, has spurred Firefox developers to check whether the browser might have a similar flaw – and they found it. There’s currently no indication that the Firefox bug (CVE-2025-2857) is under active exploitation, but this should not be surprising: according to Statcounter, Chrome is used by 66.3% of internet users worldwide and Firefox only by 2.62%. About CVE-2025-2857 CVE-2025-2783 has been described as “a … More → The post Critical Firefox, Tor Browser sandbox escape flaw fixed (CVE-2025-2857) appeared first on Help Net Security.
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Related Vulnerability
DATE | CVE | VULNERABILITY TITLE | RISK |
---|---|---|---|
2025-03-27 | CVE-2025-2857 | Unspecified vulnerability in Mozilla Firefox Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. | 0.0 |
2025-03-26 | CVE-2025-2783 | Unspecified vulnerability in Google Chrome Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. | 0.0 |