by Kastro
Paper/Archive/CVE-2026-4746

CVE-2026-4746

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

EPSS 0.3%CVSS 10.0
critical.is priorityof 100
34
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 18.1.181 × 203.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
proton< 1.6.161.6.16CNA

Scores by source

GovTech CSG (CNA)10.0CVSS: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
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchgithub.com/timeplus-io/proton/pull/943