How severe is CVE-2020-3333?

CVE-2020-3333 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-3333 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3333?

CVE-2020-3333 primarily affects Cisco Application Policy Infrastructure Controller. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-3333?

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

When was CVE-2020-3333 published?

CVE-2020-3333 was published on 2020-06-03 and last updated on 2026-06-17.

CVE-2020-3333

CVE-2020-3333 is a medium-severity vulnerability in Cisco Application Policy Infrastructure Controller with a CVSS 3.x base score of 5.3. 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-306.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Cisco Application Policy Infrastructure Controller
Published: 2020-06-03
Last modified: 2026-06-17

Description

A vulnerability in the API of Cisco Application Services Engine Software could allow an unauthenticated, remote attacker to update event policies on an affected device. The vulnerability is due to insufficient authentication of users who modify policies on an affected device. An attacker could exploit this vulnerability by crafting a malicious HTTP request to contact an affected device. A successful exploit could allow the attacker to update event policies on the affected device.

Frequently asked questions

What is CVE-2020-3333?: A vulnerability in the API of Cisco Application Services Engine Software could allow an unauthenticated, remote attacker to update event policies on an affected device. The vulnerability is due to insufficient authentication of users who modify policies on an affected device. An attacker could exploit this vulnerability by crafting a malicious HTTP request to contact an affected device. A successful exploit could allow the attacker to update event policies on the affected device.
How severe is CVE-2020-3333?: CVE-2020-3333 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-3333 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3333?: CVE-2020-3333 primarily affects Cisco Application Policy Infrastructure Controller. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-3333?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-3333 published?: CVE-2020-3333 was published on 2020-06-03 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-APIC-EPU-F8y5kUOP

Affected products (2)

cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(0c\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_services_engine:*:*:*:*:*:*:*:*

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