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)
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.
: Google Chromium Mojo Sandbox Escape Vulnerability · CISA KEV detail
: 2025-03-27
: 2025-04-17
: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 52403 | exploit_db | edb | 2025-08-11 | Exploit-DB ↗ |
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)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.3 | 3.1 | HIGH |
|
1.6 | 6.0 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 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 |
| URL | Tags |
|---|---|
| https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html | Release Notes |
| https://issues.chromium.org/issues/405143032 | Permissions Required |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2783 | US Government Resource |