CVE-2025-2783

Exp

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)

Published: 2025-03-26 Last update: 2025-10-24 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-2783 is rated Critical Active Threat (91.1/100): CVSS High severity, with high exploitation likelihood (EPSS 8.56%, 94th percentile). Core evidence: CISA KEV confirms active exploitation (added 2025-03-27) affecting Google / Chromium Mojo. Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2025-2783

Name: Google Chromium Mojo Sandbox Escape Vulnerability · CISA KEV detail

Exploit added: 2025-03-27

Action due: 2025-04-17

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Public exploit references (Exploit-DB) for CVE-2025-2783

EDB-ID Source Kind Published Link
52403 exploit_db edb 2025-08-11 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-2783

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-16 8.68% 8.56% -0.13%
2 2026-06-15 44.83% 8.68% -36.15%
3 2026-06-14 44.83%

Full EPSS history (65 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-2783

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.3 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.6 6.0 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-2783

OS Trackers for CVE-2025-2783

vendor priority summary link
alpine CVE-2025-2783: 2 source package rows (qt5-qtwebengine, qt6-qtwebengine); 5 state rows across 3 repos (3.21-community, 3.22-community, edge-community); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2025-2783
debian unimportant CVE-2025-2783 unimportant priority: Debian including 1 source packages (chromium), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-2783
redhat https://access.redhat.com/security/cve/CVE-2025-2783

Affected software / configurations for CVE-2025-2783

Vendor Product Version Raw CPE
google chrome < 134.0.6998.177 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

References for CVE-2025-2783

cvelogic Threat Intelligence