Is CVE-2011-0770 being actively exploited?

CVE-2011-0770 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-0770?

CVE-2011-0770 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2011-0770

MEDIUM · CVSS 4.3EPSS 3.5%EU EUVD

Cross-site scripting (XSS) vulnerability in Windows Event Log SmartConnector in HP ArcSight Connector Appliance before 6.1 allows remote attackers to inject arbitrary web script or HTML via the Windows XP variable in a file.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
EPSS score: 3.5% (89th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-0782)
Published: July 19, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-0782 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

hp / arcsight c1000 appliance
hp / arcsight c1300 appliance
hp / arcsight c3200 appliance
hp / arcsight c3400 appliance
hp / arcsight c5200 appliance
hp / arcsight c5400 appliance
hp / windows event log smartconnector

References

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

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