CVE-2026-4746

Name: CVE-2026-4746
Creator: NVD / NIST
Published: 2026-03-24T05:16:25.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 0.28%

Last modified Jun 17, 2026

This CVE is reserved or awaiting analysis. Details will appear once published by NVD.

Description

Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is associated with program files inflate.C. This issue affects proton: before 1.6.16.

Metrics

CVSS 4.0

10/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:N/AU:Y/R:U/V:C/RE:L/U:Amber

EPSS Probability

0.28%

19.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

References

https://github.com/timeplus-io/proton/pull/943

Timeline

Published: Mar 24, 2026
Last Modified: Jun 17, 2026
Status: Awaiting Analysis

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Source: NVD / NIST