How severe is CVE-2021-31926?

CVE-2021-31926 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-31926 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31926?

CVE-2021-31926 affects Cubecoders Amp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31926?

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

When was CVE-2021-31926 published?

CVE-2021-31926 was published on 2021-04-30 and last updated on 2026-06-17.

CVE-2021-31926

CVE-2021-31926 is a medium-severity vulnerability in Cubecoders Amp with a CVSS 3.x base score of 6.5. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Cubecoders Amp
Published: 2021-04-30
Last modified: 2026-06-17

Description

AMP Application Deployment Service in CubeCoders AMP 2.1.x before 2.1.1.2 allows a remote, authenticated user to open ports in the local system firewall by crafting an HTTP(S) request directly to the applicable API endpoint (despite not having permission to make changes to the system's network configuration).

Frequently asked questions

What is CVE-2021-31926?: AMP Application Deployment Service in CubeCoders AMP 2.1.x before 2.1.1.2 allows a remote, authenticated user to open ports in the local system firewall by crafting an HTTP(S) request directly to the applicable API endpoint (despite not having permission to make changes to the system's network configuration).
How severe is CVE-2021-31926?: CVE-2021-31926 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-31926 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31926?: CVE-2021-31926 affects Cubecoders Amp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31926?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-31926 published?: CVE-2021-31926 was published on 2021-04-30 and last updated on 2026-06-17.

References

https://github.com/CubeCoders/AMP/issues/443

Affected products (1)

cpe:2.3:a:cubecoders:amp:*:*:*:*:*:*:*:*

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