Buffer overflow in mg_resolve_from_hosts_file in Mongoose 6.18, when reading from a crafted hosts file.
CVE-2020-25887
HIGHNVD 8.88.8—Elevated
EchelonGraph scoreMEDIUM confidence
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-08-22. NVD baseline CVSS 8.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 56(Track*)EG Risk 56/100SSVC: 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 computedSeverity88% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 1%
- EPSS %ILE
- 52%
- KEV
- Not listed
Published
August 22, 2023
Last Modified
November 21, 2024
References (2)
- cve@mitrehttps://github.com/cesanta/mongoose/issues/1140
- af854a3a-2127-422b-91ae-364da2661108https://github.com/cesanta/mongoose/issues/1140
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Frequently asked(5)
What is CVE-2020-25887?
CVE-2020-25887 is a high vulnerability published on August 22, 2023. Buffer overflow in mgresolvefromhostsfile in Mongoose 6.18, when reading from a crafted hosts file.
When was CVE-2020-25887 disclosed?
CVE-2020-25887 was first published in the National Vulnerability Database on August 22, 2023, 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-2020-25887 actively exploited?
CVE-2020-25887 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.0% of all scored CVEs.
What is the CVSS score of CVE-2020-25887?
CVE-2020-25887 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2020-25887?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-25887, 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
Explore the affected products and dependency analysis for CVE-2020-25887
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