CVE-2017-20199: A vulnerability was found in Buttercup buttercup-browser-extension up to 0.14.2

Q: How do I fix CVE-2017-20199?

buttercup: upgrade to 1.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2017-20199 being exploited?

CVE-2017-20199 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-20199 affect?

CVE-2017-20199 affects buttercup. Severity is low (CVSS 3.1). 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

Q: How urgent is CVE-2017-20199?

Priority 21/100. No elevated risk signals yet.

Routine

LOW 3.1UPGRADE

CVE-2017-20199 is a low-severity flaw (CVSS 3.1) affecting buttercup. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.1 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-266, CWE-284
Published	2025-08-16
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: buttercup

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-16 00:15 UTCPublished CVE record published
2026-06-17 01:15 UTCUpdated Record last modified

buttercup buttercup UPGRADE

Affected: < 1.0.1

Fixed in: 1.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy buttercup || rpm -q buttercup || buttercup --version

2. UPGRADE to 1.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade buttercup

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade buttercup

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-20199?

buttercup: upgrade to 1.0.1. Exact commands for each OS are on this page.

Is CVE-2017-20199 being exploited?

CVE-2017-20199 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-20199 affect?

CVE-2017-20199 affects buttercup. Severity is low (CVSS 3.1). 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

How urgent is CVE-2017-20199?

Priority 21/100. No elevated risk signals yet.

Software pages

HashiCorp Vault vulnerabilities

References

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