CVE-2020-37123

CVE-2020-37123 is a critical-severity vulnerability 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

Description

Pinger 1.0 contains a remote code execution vulnerability that allows attackers to inject shell commands through the ping and socket parameters. Attackers can exploit the unsanitized input in ping.php to write arbitrary PHP files and execute system commands by appending shell metacharacters.

Frequently asked questions

What is CVE-2020-37123?
Pinger 1.0 contains a remote code execution vulnerability that allows attackers to inject shell commands through the ping and socket parameters. Attackers can exploit the unsanitized input in ping.php to write arbitrary PHP files and execute system commands by appending shell metacharacters.
How severe is CVE-2020-37123?
CVE-2020-37123 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-2020-37123 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-37123?
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.
Does CVE-2020-37123 have an EU (EUVD) identifier?
Yes. CVE-2020-37123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31045.
When was CVE-2020-37123 published?
CVE-2020-37123 was published on 2026-02-05 and last updated on 2026-06-17.

References

Other CWE-78 (OS Command Injection) vulnerabilities

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