CVE-2020-28648

HIGHNVD 8.88.8—

8.8

Improper input validation in the Auto-Discovery component of Nagios XI before 5.7.5 allows an authenticated attacker to execute remote code.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 92.6%
KEV: Not listed

Published

November 16, 2020

Last Modified

November 21, 2024

References (6)

cve@mitrehttp://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
cve@mitrehttps://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
cve@mitrehttps://www.nagios.com/downloads/nagios-xi/change-log/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
af854a3a-2127-422b-91ae-364da2661108https://www.nagios.com/downloads/nagios-xi/change-log/

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 20× 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.

2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-28648?

CVE-2020-28648 is a high vulnerability published on November 16, 2020. Improper input validation in the Auto-Discovery component of Nagios XI before 5.7.5 allows an authenticated attacker to execute remote code.

When was CVE-2020-28648 disclosed?

CVE-2020-28648 was first published in the National Vulnerability Database on November 16, 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-2020-28648 actively exploited?

CVE-2020-28648 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-28648?

CVE-2020-28648 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2020-28648?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-28648, 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.

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CVE-2020-28648

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-28648?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)