{"id":"CVE-2025-2783","published":"2025-03-26T16:15:23Z","modified":"2026-06-17T09:07:37Z","title":"Google Chromium Mojo Sandbox Escape Vulnerability","vendor":"Google","product":"Chromium Mojo","tier":"core","eol":null,"description":{"text":"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. (Chromium security severity: High)","provenance":"source","from":"NVD"},"summary":{"text":"Google Chromium's Mojo inter-process communication component on Windows contains a flaw in which an incorrect handle is provided under unspecified circumstances. An attacker who can get a user to open a malicious file can exploit this to escape the browser sandbox, with the attack requiring user interaction and no prior authentication.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:11Z"},"cvss":{"score":8.3,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.09238,"percentile":0.95338,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-03-27","dueDate":"2025-04-17","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html ; https://nvd.nist.gov/vuln/detail/CVE-2025-2783","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-03-25","exploitedFirstSeen":"2025-03-25","ransomware":false,"evidence":[{"url":"https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html","date":"2025-03-25"},{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2025-03-25"},{"url":"https://securelist.com/operation-forumtroll/115989/","date":"2025-03-25"},{"url":"https://www.kaspersky.ru/blog/forum-troll-apt-with-zero-day-vulnerability/39300/","date":"2025-03-25"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-03-27"},{"url":"https://digital.nhs.uk/cyber-alerts/2025/cc-4639","date":"2025-03-28"},{"url":"https://nsfocusglobal.com/nsfocus-apt-briefing-march-2025/","date":"2025-04-27"},{"url":"https://blog.securelayer7.net/cve-2025-2783-chrome-mojo-ipc-sandbox/","date":"2025-04-28"},{"url":"https://global.ptsecurity.com/analytics/pt-esc-threat-intelligence/team46-and-taxoff-two-sides-of-the-same-coin","date":"2025-06-15"},{"url":"https://www.ptsecurity.com/ru-ru/research/analytics/aktual-nye-kiberugrozy-i-ii-kvartaly-2025-goda/#id8","date":"2025-08-28"}],"evidenceTotal":20,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[],"references":[{"url":"https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html","tags":["Release Notes"]},{"url":"https://issues.chromium.org/issues/405143032","tags":["Permissions Required"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2783","tags":["US Government Resource"]}],"techniques":[{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Sandbox Bypass or Escape","mappingType":"exploitation_technique","evidence":[],"comment":"This vulnerability allows attackers to escape Chrome’s sandbox through a Mojo IPC message crafted to trigger higher privilege. Exploitation has been reported as part of a cyber-espionage campaign.","confidence":"high"},{"id":"T1548","name":"Abuse Elevation Control Mechanism","tactics":["privilege-escalation"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Sandbox Bypass or Escape","mappingType":"primary_impact","evidence":[],"comment":"This vulnerability allows attackers to escape Chrome’s sandbox through a Mojo IPC message crafted to trigger higher privilege. Exploitation has been reported as part of a cyber-espionage campaign.","confidence":"high"},{"id":"T1497","name":"Virtualization/Sandbox Evasion","tactics":["discovery","stealth"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Sandbox Bypass or Escape","mappingType":"secondary_impact","evidence":[],"comment":"This vulnerability allows attackers to escape Chrome’s sandbox through a Mojo IPC message crafted to trigger higher privilege. Exploitation has been reported as part of a cyber-espionage campaign.","confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-8225","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-8225","exploited":true,"exploitedSince":"2025-03-27","provenance":"source"},"exploits":[{"id":52403,"url":"https://www.exploit-db.com/exploits/52403","title":"Microsoft Edge Renderer Process (Mojo IPC) 134.0.6998.177 - Sandbox Escape","type":"webapps","platform":"windows","date":"2025-08-11","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2025-08-11"},"pocGithub":{"count":5,"skipped":0,"earliest":"2025-04-06","earliestUrl":"https://github.com/Alchemist3dot14/CVE-2025-2783","repos":[{"name":"Alchemist3dot14/CVE-2025-2783","url":"https://github.com/Alchemist3dot14/CVE-2025-2783","stars":33,"created":"2025-04-06"},{"name":"byteReaper77/CVE-2025-2783","url":"https://github.com/byteReaper77/CVE-2025-2783","stars":8,"created":"2025-06-15"},{"name":"bjrjk/CVE-2025-2783","url":"https://github.com/bjrjk/CVE-2025-2783","stars":1,"created":"2026-05-08"},{"name":"ElianGonzi00/CVE-2025-2783","url":"https://github.com/ElianGonzi00/CVE-2025-2783","stars":1,"created":"2026-06-15"},{"name":"razureink/cve-2025-2783-chrome_sandbox_escape_reproduction","url":"https://github.com/razureink/cve-2025-2783-chrome_sandbox_escape_reproduction","stars":0,"created":"2026-07-23"}]},"first":{"date":"2025-04-06","source":"PoC-in-GitHub","url":"https://github.com/Alchemist3dot14/CVE-2025-2783"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1203"],"provenance":"source"},{"stage":"primary","techniques":["T1548"],"provenance":"source"},{"stage":"secondary","techniques":["T1497"],"provenance":"source"}],"timeline":[{"date":"2025-03-25","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html","provenance":"source"},{"date":"2025-03-26","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2783","provenance":"source"},{"date":"2025-03-27","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-03-27","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-8225","provenance":"source"},{"date":"2025-04-06","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub; later: Exploit-DB 2025-08-11","url":"https://github.com/Alchemist3dot14/CVE-2025-2783","provenance":"source"}],"speed":{"daysToPublicExploit":11,"firstExploitFrom":"PoC-in-GitHub","daysToKev":1},"priority":{"score":67.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 584 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.07,"detail":"percentile 0.9534"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 Exploit-DB entry; 5 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.81,"detail":"base score 8.3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}