CVE & CISA-KEV Catalog

CVE-2021-36205

HIGH
8.1
CVSS v3
NVD

Description

Under certain circumstances the session token is not cleared on logout.

How to fix

Remediation Available
metasys application and data serverNVD
Affected:>= 11.0, < 11.0.2Fixed in:11.0.2CVE-2021-36205derived from NVD
metasys extended application and data serverNVD
Affected:>= 11.0, < 11.0.2Fixed in:11.0.2CVE-2021-36205derived from NVD
metasys open application serverNVD
Affected:>= 11.0, < 11.0.2Fixed in:11.0.2CVE-2021-36205derived from NVD

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.00%probability of exploitation in 30 days
59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Vendor Advisory1
Third-Party Advisory1

Related Vulnerabilities

Other CWE-459 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2017-17090High7.582%-Fix
CVE-2021-39327Medium5.372%--
CVE-2025-31650High7.560%-Fix
CVE-2022-1552High8.812%-Fix
CVE-2018-18924High8.89.5%--
CVE-2022-21125Medium5.56.5%-Fix

Common questions

How do I fix CVE-2021-36205?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2021-36205 being actively exploited?

Not that we know of. CVE-2021-36205 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.00% is the estimated probability that it will be exploited in the next 30 days. That is higher than 59% of all scored CVEs.

How severe is CVE-2021-36205?

CVE-2021-36205 has a CVSS v3 base score of 8.1, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-36205 affect?

Published advisories record a fix for metasys application and data server (NVD), metasys extended application and data server (NVD), metasys open application server (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.