How severe is CVE-2020-22724?

CVE-2020-22724 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-22724 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22724?

CVE-2020-22724 primarily affects Mercury Mer1200 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-2020-22724?

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-2020-22724 published?

CVE-2020-22724 was published on 2021-10-14 and last updated on 2026-06-17.

CVE-2020-22724

CVE-2020-22724 is a critical-severity vulnerability in Mercury Mer1200 Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Mercury Mer1200 Firmware
Published: 2021-10-14
Last modified: 2026-06-17

Description

A remote command execution vulnerability exists in add_server_service of PPTP_SERVER in Mercury Router MER1200 v1.0.1 and Mercury Router MER1200G v1.0.1.

Frequently asked questions

What is CVE-2020-22724?: A remote command execution vulnerability exists in add_server_service of PPTP_SERVER in Mercury Router MER1200 v1.0.1 and Mercury Router MER1200G v1.0.1.
How severe is CVE-2020-22724?: CVE-2020-22724 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-22724 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22724?: CVE-2020-22724 primarily affects Mercury Mer1200 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-2020-22724?: 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-2020-22724 published?: CVE-2020-22724 was published on 2021-10-14 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:mercury:mer1200_firmware:1.0.1:*:*:*:*:*:*:*
cpe:2.3:o:mercury:mer1200g_firmware:1.0.1:*:*:*:*:*:*:*

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