How severe is CVE-2017-20199?

CVE-2017-20199 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2017-20199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-20199?

CVE-2017-20199 affects Buttercup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-20199?

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

Does CVE-2017-20199 have an EU (EUVD) identifier?

Yes. CVE-2017-20199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18917.

When was CVE-2017-20199 published?

CVE-2017-20199 was published on 2025-08-16 and last updated on 2026-06-17.

CVE-2017-20199

CVE-2017-20199 is a low-severity vulnerability in Buttercup with a CVSS 3.x base score of 3.1. 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-266.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
CVSS v2: 2.6
CVSS v4: 1.3
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2017-18917
Weakness: CWE-266
Affected product: Buttercup
Published: 2025-08-16
Last modified: 2026-06-17

Description

A vulnerability was found in Buttercup buttercup-browser-extension up to 0.14.2. Affected by this vulnerability is an unknown functionality of the component Vault Handler. The manipulation results in improper access controls. The attack may be performed from a remote location. A high complexity level is associated with this attack. The exploitation appears to be difficult. The exploit has been made public and could be used. Upgrading to version 1.0.1 addresses this issue. The patch is identified as 89. Upgrading the affected component is recommended. This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2017-20199?: A vulnerability was found in Buttercup buttercup-browser-extension up to 0.14.2. Affected by this vulnerability is an unknown functionality of the component Vault Handler. The manipulation results in improper access controls. The attack may be performed from a remote location. A high complexity level is associated with this attack. The exploitation appears to be difficult. The exploit has been made public and could be used. Upgrading to version 1.0.1 addresses this issue. The patch is identified as 89. Upgrading the affected component is recommended. This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2017-20199?: CVE-2017-20199 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2017-20199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-20199?: CVE-2017-20199 affects Buttercup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-20199?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2017-20199 have an EU (EUVD) identifier?: Yes. CVE-2017-20199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18917.
When was CVE-2017-20199 published?: CVE-2017-20199 was published on 2025-08-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:buttercup:buttercup:*:*:*:*:*:*:*:*

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