Is CVE-2011-4596 being actively exploited?

CVE-2011-4596 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4596?

CVE-2011-4596 has a CVSS 2.0 base score of 6.0 (MEDIUM).

CVE-2011-4596

MEDIUM · CVSS 6.0EPSS 1.8%EU EUVD

Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration method are enabled, allow remote authenticated users to overwrite arbitrary files via a crafted (1) tarball or (2) manifest.

Key facts

CVSS score: 6.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:S/C:P/I:P/A:P
Weakness (CWE): CWE-22
EPSS score: 1.8% (78th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2022-5020)
Published: December 23, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-5020 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

openstack / nova

References

https://bugs.launchpad.net/nova/+bug/885167(Third Party Advisory)
https://bugs.launchpad.net/nova/+bug/894755(Third Party Advisory)
https://github.com/openstack/nova/commit/76363226bd8533256f7795bba358d7f4b8a6c9e6(Third Party Advisory)
https://github.com/openstack/nova/commit/ad3241929ea00569c74505ed002208ce360c667e(Third Party Advisory)
https://lists.launchpad.net/openstack/msg06105.html(Third Party Advisory)

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

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