Vulnerability Analysis

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

CVE-2026-4746

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.

No Active Exploit Signals

CVSS Base Score

10.0

CRITICAL

Exploitability:-

Impact Score:-

Temporal Score:-

EPSS:0.28%

Threat Intelligence Signals

CISA KEV

KEV Date Added

—

Ransomware Use

—

KEV Due Date

—

VulnCheck In-the-Wild

Nuclei Template

EPSS Score

0.276%

EPSS Percentile

19.2th pct

GHSA ID

GHSA-ch4h-8w5c-3g8g ↗

GitHub Severity

CRITICAL

SSVC Exploitation

—

SSVC Automatable

—

Vulnerability Class

—

CVSS Vector Details

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality

Integrity

Availability

Identity & Timeline

Status	-
Assigning Authority	-
CVSS Version / Source	-
Reserved	-
Published	-
Patch Date (date_public)	-
Exploit DB Date	-
First GitHub PoC Date	-
Last Updated	-
Time to Patch (Days to fix)	-
Exploit Release Gap	-
PoC Release Gap	-
Exploit DB References	None identified

Weaknesses (CWE)

CISA SSVC Prioritization

MITRE ATT&CK Mapping

Tactics

Techniques

Exploitation & Remediation

Affected Products & Versions

Vendor	Product	Affected Versions
No affected products specified.

References

NVD Listing ↗ MITRE Listing ↗

No reference links found.