CVE-2022-38308

Exp

TOTOLink A700RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the lang parameter in the function cstesystem. This vulnerability allows attackers to execute arbitrary commands via a crafted payload.

Published: 2022-09-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-38308 is rated High Exploit Risk (84/100): CVSS Critical severity, with high exploitation likelihood (EPSS 20.35%, 97th percentile). 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-2022-38308

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

Exploit prediction scoring system (EPSS) score for CVE-2022-38308

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 24.52% 20.35% -4.17%
2 2026-03-10 28.05% 24.52% -3.53%
3 2025-11-21 — 28.05% —

Full EPSS history (29 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-38308

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2022-38308

Affected software / configurations for CVE-2022-38308

Vendor Product Version Raw CPE
totolink a7000ru_firmware 7.4cu.2313_b20191024 cpe:2.3:o:totolink:a7000ru_firmware:7.4cu.2313_b20191024:*:*:*:*:*:*:*

References for CVE-2022-38308

URL Tags
https://github.com/WhoisZkuan/TOTOlink-A700RU Exploit Patch Third Party Advisory
cvelogic Threat Intelligence