CVE-2026-4746 is a critical out-of-bounds write vulnerability (CWE-787) affecting timeplus-io proton versions prior to 1.6.16, specifically within the inflate.C program file. Rated with a CVSS score of 10.0, this flaw allows unauthenticated, remote attackers to achieve high impact on confidentiality, integrity, and availability, potentially leading to code execution or system takeover with no user interaction. While there are no known public exploits, KEV entries, or active exploitation reports, the vulnerability has garnered some community discussion highlighting its severe risk and the need for immediate patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Timeplus-Io | Proton | >= 0, < 1.6.16CNA affecteddefault affected |
CVSS version used by this source: 4.0
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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.