CVE-2017-20199

1.3 LOW 0.5% exploit odds Fix listed Other Browser & mail

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
Exploit odds: 0.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2025-08-16 00:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:15 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.5% in the next 30 days (EPSS).
Severity: 1.3 LOW (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2025-08-16 00:15 UTC
Last modified: 2026-06-17 01:15 UTC
Exploit probability: 0.5% · EPSS, next 30 days
Weakness: CWE-266
Record status: Analyzed

Affected

Buttercup < 1.0.1

Attack profile CVSS 4.0 · 1.3

Attack vector: Network
Complexity: High
Attack requirements: None
Privileges needed: None
User interaction: Passive
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2017-20199.md and follow it. Check whether this project is affected by CVE-2017-20199. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record