boxscore/security
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-2026-19823HIGH
Tenda W20E QoS Rule Deletion delQos formQOSRuleDel stack-based overflow
  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   H   H   H    7.4   .0047   38.6     —
AFFECTED
  Product  Versions                           Fixed
  W20E     15.11.0.6(1068_1546_841)_CN_TDC –  —
TIMELINE
  Aug 14  Reserved by VulDB
  Aug 14  Published (CNA: VulDB)
  Aug 18  EXPLOIT PUBLISHED — CVE-2026-19823 (Tenda W20E). Public exploit reference added.
CWE-119, CWE-121 · CNA: VulDB · CVSS v4.0 · 6 references · NVD status: Deferred

Description

A security flaw has been discovered in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. Impacted is the function formQOSRuleDel of the file /goform/delQos of the component QoS Rule Deletion. Performing a manipulation of the argument qosIndex results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
August 14, 2026ReservedReserved by VulDB
August 14, 2026PublishedPublished (CNA: VulDB)
August 18, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-19823 (Tenda W20E). Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
TendaW20E15.11.0.6(1068_1546_841)_CN_TDC

Weaknesses

CWE-119 · CWE-121

References (6)

Related

Authoritative record: CVE-2026-19823 at cve.org

Vendors: tenda

Weaknesses: CWE-119 · CWE-121

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19823 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.