CVE-2026-19976 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-19976LOW

COMFAST CF-N1-S mbox-config sub_44A968 command injection

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   H   N   L   L   L    2.0   .0205   79.7     —

AFFECTED
  Product  Versions   Fixed
  CF-N1-S  2.6.0.1 –  —

TIMELINE
  Aug 16  EXPLOIT PUBLISHED — CVE-2026-19976 (COMFAST CF-N1-S). Public exploit reference added.
  Aug 16  Reserved by VulDB
  Aug 17  Published (CNA: VulDB)

CWE-77, CWE-74 · CNA: VulDB · CVSS v4.0 · 5 references · NVD status: Received

Description

A security vulnerability has been detected in COMFAST CF-N1-S 2.6.0.1. Impacted is the function sub_44A968 of the file /cgi-bin/mbox-config?method=SET&section=ptest_macaddress. Such manipulation of the argument macaddress leads to command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 16, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-19976 (COMFAST CF-N1-S). Public exploit reference added.
August 16, 2026	Reserved	Reserved by VulDB
August 17, 2026	Published	Published (CNA: VulDB)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
COMFAST	CF-N1-S	—	2.6.0.1	—

Weaknesses

CWE-77 · CWE-74

References (5)

https://github.com/1ChaoRen1/IOT/blob/main/CF-N1-S-V2.6.0.1%20.pdf [exploit]
https://vuldb.com/cve/CVE-2026-19976 [third-party-advisory]
https://vuldb.com/submit/873821 [third-party-advisory]
https://vuldb.com/vuln/391155 [vdb-entry, technical-description]
https://vuldb.com/vuln/391155/cti [signature, permissions-required]

Authoritative record: CVE-2026-19976 at cve.org

Vendors: comfast

Weaknesses: CWE-77 · CWE-74

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19976 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.