How severe is CVE-2021-1538?

CVE-2021-1538 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-1538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-1538?

CVE-2021-1538 affects Cisco Common Services Platform Collector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-1538?

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

When was CVE-2021-1538 published?

CVE-2021-1538 was published on 2021-06-04 and last updated on 2026-06-17.

CVE-2021-1538

CVE-2021-1538 is a medium-severity vulnerability in Cisco Common Services Platform Collector with a CVSS 3.x base score of 4.7. 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 9.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Cisco Common Services Platform Collector
Published: 2021-06-04
Last modified: 2026-06-17

Description

A vulnerability in the configuration dashboard of Cisco Common Services Platform Collector (CSPC) could allow an authenticated, remote attacker to execute arbitrary code. This vulnerability is due to insufficient sanitization of configuration entries. An attacker could exploit this vulnerability by logging in as a super admin and entering crafted input to configuration options on the CSPC configuration dashboard. A successful exploit could allow the attacker to execute remote code as root.

Frequently asked questions

What is CVE-2021-1538?: A vulnerability in the configuration dashboard of Cisco Common Services Platform Collector (CSPC) could allow an authenticated, remote attacker to execute arbitrary code. This vulnerability is due to insufficient sanitization of configuration entries. An attacker could exploit this vulnerability by logging in as a super admin and entering crafted input to configuration options on the CSPC configuration dashboard. A successful exploit could allow the attacker to execute remote code as root.
How severe is CVE-2021-1538?: CVE-2021-1538 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-1538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-1538?: CVE-2021-1538 affects Cisco Common Services Platform Collector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-1538?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-1538 published?: CVE-2021-1538 was published on 2021-06-04 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-CSPC-CIV-kDuBfNfu

Affected products (1)

cpe:2.3:a:cisco:common_services_platform_collector:*:*:*:*:*:*:*:*

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