How severe is CVE-2021-27653?

CVE-2021-27653 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27653 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27653?

CVE-2021-27653 affects Pega Infinity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27653?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-27653 published?

CVE-2021-27653 was published on 2021-04-01 and last updated on 2026-06-17.

CVE-2021-27653

CVE-2021-27653 is a medium-severity vulnerability in Pega Infinity with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
CVSS v2: 4.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Pega Infinity
Published: 2021-04-01
Last modified: 2026-06-17

Description

Misconfiguration of the Pega Chat Access Group portal in Pega platform 7.4.0 - 8.5.x could lead to unintended data exposure.

Frequently asked questions

What is CVE-2021-27653?: Misconfiguration of the Pega Chat Access Group portal in Pega platform 7.4.0 - 8.5.x could lead to unintended data exposure.
How severe is CVE-2021-27653?: CVE-2021-27653 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27653 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27653?: CVE-2021-27653 affects Pega Infinity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27653?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27653 published?: CVE-2021-27653 was published on 2021-04-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pega:infinity:*:*:*:*:*:*:*:*

More vulnerabilities in Pega Infinity

CVE-2022-24083 — Critical (CVSS 9.8): Password authentication bypass vulnerability for local accounts can be used to bypass local authentication checks.
CVE-2022-24082 — Critical (CVSS 9.8): If an on-premise installation of the Pega Platform is configured with the port for the JMX interface exposed to the…
CVE-2021-27651 — Critical (CVSS 9.8): In versions 8.2.1 through 8.5.2 of Pega Infinity, the password reset functionality for local accounts can be used to…
CVE-2024-10094 — Critical (CVSS 9.1): Pega Platform versions 6.x to Infinity 24.1.1 are affected by an issue with Improper Control of Generation of Code
CVE-2021-27654 — High (CVSS 7.8): Forgotten password reset functionality for local accounts can be used to bypass local authentication checks.
CVE-2024-10716 — Medium (CVSS 5.9): Pega Platform versions 8.1 to Infinity 24.2.0 are affected by an XSS issue with search.

All CVEs affecting Pega Infinity →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →