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CVE-2013-5556

18
FAUCET Score

CVE-2013-5556 describes a privilege escalation vulnerability in the license-installation module of Cisco Nexus 1000V switches for VMware vSphere and Microsoft Hyper-V, as well as Cisco Virtual Security Gateway. A local, authenticated user can exploit this flaw by crafting specific "install all iso" arguments to gain elevated privileges and execute arbitrary commands. The vulnerability has a CVSS score of 6.8, indicating high impact on confidentiality, integrity, and availability, with a local attack vector and low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.2\(1\)vsg1\(1\)CPE matchmatch criteria
cpe:2.3:h:cisco:nexus_1000v:4.2\(1\)vsg1\(1\):-:*:*:*:nexus_1000v:*:*
5.2\(1\)sm1\(5.1\)CPE matchmatch criteria
cpe:2.3:h:cisco:nexus_1000v:5.2\(1\)sm1\(5.1\):-:*:*:*:microsoft_hyper-v:*:*
<= 4.2\(1\)sv1\(5.2b\)CPE matchmatch criteria
cpe:2.3:h:cisco:nexus_1000v:*:-:*:*:*:vmware_vsphere:*:*
4.2\(1\)_sv1\(4\)CPE matchmatch criteria
cpe:2.3:h:cisco:nexus_1000v:4.2\(1\)_sv1\(4\):-:*:*:*:vmware_vsphere:*:*
4.2\(1\)_sv1\(4a\)CPE matchmatch criteria
cpe:2.3:h:cisco:nexus_1000v:4.2\(1\)_sv1\(4a\):-:*:*:*:vmware_vsphere:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:L/AC:L/Au:S/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
3.1
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
23.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 80th percentile among its peer group of 15,940 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityNotice/CVE-2013-5556
Vendor Advisory
tools.cisco.com / security/center/viewAlert.x
Vendor Advisory