CVE•Published 2026-06-19•Modified 2026-07-09•1 article on news•6 live references•NVD data
CVE-2026-51843Tenda · Ac7_firmware
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
28
Exploit Prediction Scoring System · top 72% of all CVEs
Weaknesses (CWE)
Description
Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the wanMTU parameter.
Timeline
Published 2026-06-19
Modified 2026-07-09
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-51843Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Ac7 Firmware"Hosts Shodan identified as running Ac7 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2026-51843Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-51843Censys host search filtered to this CVE id.
grep.app
CVE-2026-51843Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-51843GitHub code search for direct mentions.
Google dork
"CVE-2026-51843" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-51843 on GitHub.