CVE-2018-16333

Exp

An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices. There is a buffer overflow vulnerability in the router's web server. While processing the ssid parameter for a POST request, the value is directly used in a sprintf call to a local variable placed on the stack, which overrides the return address of the function, causing a buffer overflow.

Published: 2018-09-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-16333 is rated High Exploit Risk (71.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.64%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-16333

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-16333

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.65% 1.64% +0.99%
2 2025-11-21 0.33% 0.65% +0.31%
3 2025-11-18 — 0.33% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-16333

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2018-16333

Affected software / configurations for CVE-2018-16333

Vendor Product Version Raw CPE
tendacn ac18_firmware <= 15.03.05.19 cpe:2.3:o:tendacn:ac18_firmware:*:*:*:*:*:*:*:*
tendacn ac15_firmware 15.03.05.19 cpe:2.3:o:tendacn:ac15_firmware:15.03.05.19:*:*:*:*:*:*:*
tendacn ac10_firmware 15.03.06.23 cpe:2.3:o:tendacn:ac10_firmware:15.03.06.23:*:*:*:*:*:*:*
tendacn ac9_firmware 15.03.05.19 cpe:2.3:o:tendacn:ac9_firmware:15.03.05.19:*:*:*:*:*:*:*
tendacn ac7_firmware 15.03.06.44 cpe:2.3:o:tendacn:ac7_firmware:15.03.06.44:*:*:*:*:*:*:*

References for CVE-2018-16333

URL Tags
https://github.com/ZIllR0/Routers/blob/master/Tenda/oob1.md Exploit Third Party Advisory
cvelogic Threat Intelligence