CVE-2021-40378

Exp

An issue was discovered on Compro IP70 2.08_7130218, IP570 2.08_7130520, IP60, and TN540 devices. /cgi-bin/support/killps.cgi deletes all data from the device.

Published: 2021-09-01 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-40378 is rated High Exploit Risk (76.4/100): CVSS High severity, with high exploitation likelihood (EPSS 40.61%, 97th percentile). 2 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-2021-40378

EDB-ID Source Kind Published Link
50250 exploit_db edb 2021-09-02 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-40378

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 2025-11-21 48.95% 40.61% -8.35%
2 2025-11-18 40.61% 48.95% +8.35%
3 2025-03-30 — 40.61% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-40378

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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:L)
A normal user session is enough; they don’t have to be admin.
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: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.
 2.8 5.2 [email protected]
8.5 2.0 HIGH
AV:N/AC:L/Au:S/C:N/I:C/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:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 9.2 [email protected]

Weakness enumeration for CVE-2021-40378

Affected software / configurations for CVE-2021-40378

Vendor Product Version Raw CPE
comprotech ip70_firmware 2.08_7130218 cpe:2.3:o:comprotech:ip70_firmware:2.08_7130218:*:*:*:*:*:*:*
comprotech ip570_firmware 2.08_7130520 cpe:2.3:o:comprotech:ip570_firmware:2.08_7130520:*:*:*:*:*:*:*
comprotech ip60_firmware — cpe:2.3:o:comprotech:ip60_firmware:-:*:*:*:*:*:*:*
comprotech tn540_firmware — cpe:2.3:o:comprotech:tn540_firmware:-:*:*:*:*:*:*:*

References for CVE-2021-40378

cvelogic Threat Intelligence