How severe is CVE-2020-7357?

CVE-2020-7357 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2020-7357 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7357?

CVE-2020-7357 primarily affects Cayintech Cms-se Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-7357?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-7357 published?

CVE-2020-7357 was published on 2020-08-06 and last updated on 2026-06-17.

CVE-2020-7357

CVE-2020-7357 is a critical-severity vulnerability in Cayintech Cms-se Firmware with a CVSS 3.x base score of 9.6. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v2: 9.0
EPSS exploit prediction: 34% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Cayintech Cms-se Firmware
Published: 2020-08-06
Last modified: 2026-06-17

Description

Cayin CMS suffers from an authenticated OS semi-blind command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user through the 'NTP_Server_IP' HTTP POST parameter in system.cgi page. This issue affects several branches and versions of the CMS application, including CME-SE, CMS-60, CMS-40, CMS-20, and CMS version 8.2, 8.0, and 7.5.

Frequently asked questions

What is CVE-2020-7357?: Cayin CMS suffers from an authenticated OS semi-blind command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user through the 'NTP_Server_IP' HTTP POST parameter in system.cgi page. This issue affects several branches and versions of the CMS application, including CME-SE, CMS-60, CMS-40, CMS-20, and CMS version 8.2, 8.0, and 7.5.
How severe is CVE-2020-7357?: CVE-2020-7357 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2020-7357 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7357?: CVE-2020-7357 primarily affects Cayintech Cms-se Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-7357?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-7357 published?: CVE-2020-7357 was published on 2020-08-06 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:o:cayintech:cms-se_firmware:11.0:19179:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-se_firmware:11.0:19025:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-se_firmware:11.0:18325:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-se-lxc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-60_firmware:11.0:19025:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-40_firmware:9.0:14197:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-40_firmware:9.0:14199:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-40_firmware:9.0:14093:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-20_firmware:9.0:14197:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms-20_firmware:9.0:14092:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms:7.5:11175:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms:8.0:11175:*:*:*:*:*:*
cpe:2.3:o:cayintech:cms:8.2:12199:*:*:*:*:*:*

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →