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.
TOTOLINK A800R wps.so cstecgi.cgi setWiFiWpsConfig 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 .0060 46.1 —
AFFECTED
Product Versions Fixed
A800R 4.1.2cu.5137_B20200730 – —
TIMELINE
Aug 14 Reserved by VulDB
Aug 14 Published (CNA: VulDB)
Aug 18 EXPLOIT PUBLISHED — CVE-2026-19847 (TOTOLINK A800R). Public exploit reference added.
Description
A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component wps.so. The manipulation of the argument pin results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| August 14, 2026 | Reserved | Reserved by VulDB |
| August 14, 2026 | Published | Published (CNA: VulDB) |
| August 18, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-19847 (TOTOLINK A800R). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| TOTOLINK | A800R | — | 4.1.2cu.5137_B20200730 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19847 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.