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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-2783

Google Chromium Mojo Sandbox Escape Vulnerability

KEVEXPLOITHIGH 8.3EPSS 9.24%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 April 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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)

CVSS 3.1
8.3 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS
9.24% probability · 95th percentile
Public exploits
1 in Exploit-DB · first 11 August 2025
CISA KEV
Listed 27 March 2025 · due 17 April 2025
Affected
google/chrome
Source
chrome-cve-admin@google.com
EPSS trend
0%5%10%30 October 2026: 9.24%30 October 202630 October 2026

EPSS 9.2% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html ; https://nvd.nist.gov/vuln/detail/CVE-2025-2783

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-52403source ↗Microsoft Edge Renderer Process (Mojo IPC) 134.0.6998.177 - Sandbox Escapewindows · nu11secur1tywebapps11 August 2025no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.