CVE-2020-37123

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-02-05. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
86.5%
KEV
Not listed

Published

February 5, 2026

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated May 19, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Pinger 1.0 - Remote Code Execution | Advisories | VulnCheck

https://www.vulncheck.com/advisories/pinger-remote-code-execution
generic🟡 PoC Available

Pinger 1.0 - Remote Code Execution - PHP webapps Exploit

https://www.exploit-db.com/exploits/48323
generic

GitHub - wcchandler/pinger: Simple, lightweight monitoring webapp using PHP, jQuery, ping and nc. · GitHub

https://github.com/wcchandler/pinger

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 132 total refreshes for this CVE.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:53 UTCEG score recompute
  4. 2026-07-22 22:39 UTCEG score recompute
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  1. 2026-07-08 15:12 UTCEPSS rescore
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  31. 2026-06-13 22:58 UTCEPSS rescore
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  33. 2026-06-12 06:31 UTCGHSA enrichment
  34. 2026-06-11 13:58 UTCEPSS rescore
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  36. 2026-06-10 13:20 UTCEPSS rescore
  37. 2026-06-08 05:56 UTCGHSA enrichment
  38. 2026-06-08 01:36 UTCGHSA enrichment
  39. 2026-06-07 21:16 UTCGHSA enrichment
  40. 2026-06-07 15:23 UTCEPSS rescore
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  49. 2026-06-04 13:10 UTCEPSS rescore
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  51. 2026-06-02 20:11 UTCEPSS rescore
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  53. 2026-06-01 13:50 UTCEPSS rescore
  54. 2026-05-31 22:29 UTCEPSS rescore
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  56. 2026-05-31 00:15 UTCEPSS rescore
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2020/CVE-2020-37123.yaml
    First seen Jan 1, 2020

    Pinger 1.0 - Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-37123?
CVE-2020-37123 is a critical vulnerability published on February 5, 2026. 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.
When was CVE-2020-37123 disclosed?
CVE-2020-37123 was first published in the National Vulnerability Database on February 5, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-37123 actively exploited?
CVE-2020-37123 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-37123?
CVE-2020-37123 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-37123?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-37123, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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