CVE-2026-4746CWE-787

Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton

Critical · published March 24, 2026

CVSS v4.0
10.0
EPSS
0%
Percentile
37.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
10.0 · CRITICAL
Vector
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/S:N/AU:Y/R:U/V:C/RE:L/U:Amber
EPSS
0.00445 · 37.6th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-03-24T03:28Z
EPSS history
Timeline
  • 24 MAR 03:28Z
    Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton
    cvelistv5