How severe is CVE-2021-31674?

CVE-2021-31674 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-31674 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31674?

CVE-2021-31674 affects Cyclos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31674?

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

When was CVE-2021-31674 published?

CVE-2021-31674 was published on 2022-05-02 and last updated on 2026-07-09.

CVE-2021-31674

CVE-2021-31674 is a medium-severity vulnerability in Cyclos with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cyclos
Published: 2022-05-02
Last modified: 2026-07-09

Description

Cyclos 4 PRO 4.14.7 and before does not validate user input at error inform, which allows remote unauthenticated attacker to execute javascript code via undefine enum constant.

Frequently asked questions

What is CVE-2021-31674?: Cyclos 4 PRO 4.14.7 and before does not validate user input at error inform, which allows remote unauthenticated attacker to execute javascript code via undefine enum constant.
How severe is CVE-2021-31674?: CVE-2021-31674 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-31674 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31674?: CVE-2021-31674 affects Cyclos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31674?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-31674 published?: CVE-2021-31674 was published on 2022-05-02 and last updated on 2026-07-09.

References

Affected products (1)

cpe:2.3:a:cyclos:cyclos:*:*:*:*:pro:*:*:*

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