How severe is CVE-2013-1659?

CVE-2013-1659 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2013-1659 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1659?

CVE-2013-1659 primarily affects Vmware Vcenter Server. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1659?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-1659 published?

CVE-2013-1659 was published on 2013-02-22 and last updated on 2026-06-16.

CVE-2013-1659

CVE-2013-1659 is a high-severity vulnerability in Vmware Vcenter Server with a CVSS 2.0 base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Vmware Vcenter Server
Published: 2013-02-22
Last modified: 2026-06-16

Description

VMware vCenter Server 4.0 before Update 4b, 5.0 before Update 2, and 5.1 before 5.1.0b; VMware ESXi 3.5 through 5.1; and VMware ESX 3.5 through 4.1 do not properly implement the Network File Copy (NFC) protocol, which allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption) by modifying the client-server data stream.

Frequently asked questions

What is CVE-2013-1659?: VMware vCenter Server 4.0 before Update 4b, 5.0 before Update 2, and 5.1 before 5.1.0b; VMware ESXi 3.5 through 5.1; and VMware ESX 3.5 through 4.1 do not properly implement the Network File Copy (NFC) protocol, which allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption) by modifying the client-server data stream.
How severe is CVE-2013-1659?: CVE-2013-1659 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2013-1659 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1659?: CVE-2013-1659 primarily affects Vmware Vcenter Server. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1659?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-1659 published?: CVE-2013-1659 was published on 2013-02-22 and last updated on 2026-06-16.

References

http://www.vmware.com/security/advisories/VMSA-2013-0003.html

Affected products (24)

cpe:2.3:a:vmware:vcenter_server:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:4.0:update_1:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:4.0:update_2:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:4.0:update_3:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:4.0:update_4:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:4.0:update_4a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server_appliance:5.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server_appliance:5.1.0a:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:5.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:5.0:update_1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:3.5:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:3.5:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:3:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:4:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.1:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.1:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.1:2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.0:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.0:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.0:2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.1:*:*:*:*:*:*:*

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