CVE•Published 2026-04-27•Modified 2026-04-28•1 article on news•7 live references•NVD data
CVE-2026-31255Tenda · Ac18_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
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Weaknesses (CWE)
Description
A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands.
Timeline
Published 2026-04-27
Modified 2026-04-28
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-2026-31255Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Ac18 Firmware"Hosts Shodan identified as running Ac18 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2026-31255Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-31255Censys host search filtered to this CVE id.
grep.app
CVE-2026-31255Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-31255GitHub code search for direct mentions.
Google dork
"CVE-2026-31255" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-31255 on GitHub.