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

Critical Firefox, Tor Browser sandbox escape flaw fixed (CVE-2025-2857)
2025-03-28 10:57

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.


News URL

https://www.helpnetsecurity.com/2025/03/28/critical-firefox-tor-browser-sandbox-escape-flaw-fixed-cve-2025-2857/

Related Vulnerability

DATE CVE VULNERABILITY TITLE RISK
2025-03-27 CVE-2025-2857 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