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Vulnerabilities

Vulnerability · CVE-2013-5971

Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain pr…

Published Oct 21, 2013 · catalog updated Jun 16, 2026 · vcenter server

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2013-5971. EPSS is 2.02%. Act only if a listed version of vcenter server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.02%
Remediation
Version ranges on file
Affected products
cpe vmware/vcenter server

Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe vmware/vcenter server4.0.0.10021
  • cpe vmware/vcenter server4.0.0.12305
  • cpe vmware/vcenter server4.1
  • cpe vmware/vcenter server4.1.0.12319
  • cpe vmware/vcenter server4.1.0.14766
  • cpe vmware/vcenter server<= 5.0

How to fix CVE-2013-5971

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2013-5971. EPSS is 2.02%. Act only if a listed version of vcenter server is installed.

Which versions are affected?

Compare what you have installed with vmware/vcenter server 4.0.0.10021; vmware/vcenter server 4.0.0.12305; vmware/vcenter server 4.1; vmware/vcenter server 4.1.0.12319. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-264. EPSS 2.02%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

VMware security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2013 · Monitored products — critical

    Detected

    Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.

  2. Jun 16, 2026 · Monitored products — critical

    Updated

    Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.

Sources

  • CVE.orgVulnerability recordCVE-2013-5971

    Official CVE identifier

    cve.org
  • Monitored products — criticalVendor advisoryCVE-2013-5971

    Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Monitored products — criticalNov 6, 2026
  • CVE.orgNov 2, 2026