CVE-2026-19977 — 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-2026-19977CRITICAL

EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .0071   50.7     —

AFFECTED
  Product        Versions   Fixed
  ipTIME A3004T  14.19.0 –  —

TIMELINE
  Aug 16  EXPLOIT PUBLISHED — CVE-2026-19977 (EFM ipTIME A3004T). Public exploit reference added.
  Aug 16  Reserved by VulDB
  Aug 17  Published (CNA: VulDB)
  Aug 18  EXPLOIT PUBLISHED — CVE-2026-19977 (EFM ipTIME A3004T). Public exploit reference added.

CWE-287 · CNA: VulDB · CVSS v4.0 · 5 references · NVD status: Received

Description

A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function httpcon_check_session_url of the component Session Validation. Performing a manipulation results in improper authentication. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
August 16, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-19977 (EFM ipTIME A3004T). Public exploit reference added.
August 16, 2026	Reserved	Reserved by VulDB
August 17, 2026	Published	Published (CNA: VulDB)
August 18, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-19977 (EFM ipTIME A3004T). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
EFM	ipTIME A3004T	—	14.19.0	—

Weaknesses

CWE-287

References (5)

Authoritative record: CVE-2026-19977 at cve.org

Vendors: efm

Weaknesses: CWE-287

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19977 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.