Is CVE-2011-2878 being actively exploited?

CVE-2011-2878 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-2878?

CVE-2011-2878 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2011-2878

HIGH · CVSS 7.5EPSS 1.1%EU EUVD

Google Chrome before 14.0.835.202 does not properly restrict access to the window prototype, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS score: 1.1% (65th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-2852)
Published: October 4, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2852 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

google / chrome

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain