CVE-2020-13167

CRITICALNVD 9.89.8
EchelonGraph scoreLOW confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 95.4%, top 0% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 95%
CISA-KEV: Not listedEPSS: 95%CVSS: 9.8Exploit: NoneExposed: 0

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

Netsweeper through 6.4.3 allows unauthenticated remote code execution because webadmin/tools/unixlogin.php (with certain Referer headers) launches a command line with client-supplied parameters, and allows injection of shell metacharacters.

CVSS v3
9.8
EG Score
9.8(low)
EG Risk
87(Track*)
EG Risk 87/100SSVC: Track*

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%
Exploitation95% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
99.9%
KEV
Not listed

Published

May 19, 2020

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jun 6, 2026
No patch confirmed yet.
generic

SSD Advisory - Netsweeper PreAuth RCE - SSD Secure Disclosure

https://ssd-disclosure.com/ssd-advisory-netsweeper-preauth-rce/

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 2× in last 7d / 6× 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.

  1. 2026-07-23 01:49 UTCEG score recompute
  2. 2026-07-22 22:34 UTCEG score recompute
  3. 2026-06-24 14:03 UTCEPSS rescore
  4. 2026-06-24 14:03 UTCEPSS rescore
  5. 2026-06-23 21:31 UTCEPSS rescore
  6. 2026-06-23 21:31 UTCEPSS rescore
  7. 2026-06-22 14:23 UTCEPSS rescore
  8. 2026-06-22 14:23 UTCEPSS rescore
  9. 2026-06-17 17:50 UTCEPSS rescore
  10. 2026-06-17 17:50 UTCEPSS rescore
  11. 2026-06-15 17:46 UTCEPSS rescore
  12. 2026-06-12 23:09 UTCEPSS rescore
  13. 2026-06-04 13:10 UTCEPSS rescore
  14. 2026-06-04 13:10 UTCEPSS rescore
  15. 2026-05-28 13:43 UTCEPSS rescore
  16. 2026-05-28 13:43 UTCEPSS rescore
  17. 2026-05-27 13:39 UTCEPSS rescore
  18. 2026-05-27 03:29 UTCEG score recompute
  19. 2026-05-27 03:29 UTCGHSA enrichment
  20. 2026-05-26 13:42 UTCEPSS rescore
  21. 2026-05-26 13:42 UTCEPSS rescore
  22. 2026-05-26 07:17 UTCEPSS rescore
  23. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/linux/http/netsweeper_webadmin_unixlogin✓ verified
    First seen Apr 28, 2020

    Netsweeper WebAdmin unixlogin.php Python Code Injection

    Open source ↗
  • Nucleihttp/cves/2020/CVE-2020-13167.yaml
    First seen Jan 1, 2020

    Netsweeper <=6.4.3 - Python Code Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-13167?
CVE-2020-13167 is a critical vulnerability published on May 19, 2020. Netsweeper through 6.4.3 allows unauthenticated remote code execution because webadmin/tools/unixlogin.php (with certain Referer headers) launches a command line with client-supplied parameters, and allows injection of shell metacharacters.
When was CVE-2020-13167 disclosed?
CVE-2020-13167 was first published in the National Vulnerability Database on May 19, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-13167 actively exploited?
CVE-2020-13167 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-13167?
CVE-2020-13167 has a CVSS v3 base score of 9.8 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2020-13167?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-13167, 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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