An issue was discovered in Ozeki NG SMS Gateway through 4.17.6. It stores SMS messages in .NET serialized format on the filesystem. By generating (and writing to the disk) malicious .NET serialized files, an attacker can trick the product into deserializing them, resulting in arbitrary code execution.
CVE-2020-14030
This high-severity CVE scores 7.2 under NVD CVSS v3. EPSS exploit probability: 1.8%, top 23% 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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(medium)
- EG Risk
- 38(Track)EG Risk 38/100SSVC: 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 computedSeverity72% × 45%Exploitation2% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 76.7%
- KEV
- Not listed
Published
September 30, 2020
Last Modified
November 21, 2024
References (4)
- cve@mitrehttp://www.ozeki.hu/index.php?owpn=231
- cve@mitrehttps://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14030-RCE%20via%20.NET%20Deserialization-Ozeki%20SMS%20Gateway
- af854a3a-2127-422b-91ae-364da2661108http://www.ozeki.hu/index.php?owpn=231
- af854a3a-2127-422b-91ae-364da2661108https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14030-RCE%20via%20.NET%20Deserialization-Ozeki%20SMS%20Gateway
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 45× 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.
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Frequently asked(5)
What is CVE-2020-14030?
When was CVE-2020-14030 disclosed?
Is CVE-2020-14030 actively exploited?
What is the CVSS score of CVE-2020-14030?
How do I remediate CVE-2020-14030?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-14030
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