How severe is CVE-2023-27521?

CVE-2023-27521 has a CVSS 3.x base score of 8.8, rated high 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 high.

Is CVE-2023-27521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27521?

CVE-2023-27521 primarily affects Contec Sv-cpt-mc310f Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-27521?

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

When was CVE-2023-27521 published?

CVE-2023-27521 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-27521

CVE-2023-27521 is a high-severity vulnerability in Contec Sv-cpt-mc310f Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Contec Sv-cpt-mc310f Firmware
Published: 2023-05-23
Last modified: 2026-06-17

Description

OS command injection vulnerability in the mail setting page of SolarView Compact SV-CPT-MC310 versions prior to Ver.8.10 and SV-CPT-MC310F versions prior to Ver.8.10 allows remote authenticated attackers to execute an arbitrary OS command.

Frequently asked questions

What is CVE-2023-27521?: OS command injection vulnerability in the mail setting page of SolarView Compact SV-CPT-MC310 versions prior to Ver.8.10 and SV-CPT-MC310F versions prior to Ver.8.10 allows remote authenticated attackers to execute an arbitrary OS command.
How severe is CVE-2023-27521?: CVE-2023-27521 has a CVSS 3.x base score of 8.8, rated high 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 high.
Is CVE-2023-27521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27521?: CVE-2023-27521 primarily affects Contec Sv-cpt-mc310f Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-27521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-27521 published?: CVE-2023-27521 was published on 2023-05-23 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:contec:sv-cpt-mc310f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:contec:sv-cpt-mc310_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Contec Sv-cpt-mc310f Firmware

CVE-2023-27518 — High (CVSS 8.8): Buffer overflow vulnerability in the multiple setting pages of SolarView Compact SV-CPT-MC310 versions prior to…
CVE-2023-27514 — High (CVSS 8.8): OS command injection vulnerability in the download page of SolarView Compact SV-CPT-MC310 versions prior to Ver.8.10…
CVE-2022-35239 — High (CVSS 8.8): The image file management page of SolarView Compact SV-CPT-MC310 Ver.7.23 and earlier, and SV-CPT-MC310F Ver.7.23 and…
CVE-2023-27512 — High (CVSS 7.2): Use of hard-coded credentials exists in SolarView Compact SV-CPT-MC310 versions prior to Ver.8.10, and SV-CPT-MC310F…
CVE-2023-27920 — Medium (CVSS 4.3): Improper access control vulnerability in the system date/time setting page of SolarView Compact SV-CPT-MC310 versions…

All CVEs affecting Contec Sv-cpt-mc310f Firmware →

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