CVE-2017-6371

HIGHNVD 7.57.5—Elevated

7.5

Synchronet BBS 3.16c for Windows allows remote attackers to cause a denial of service (service crash) via a long string in the HTTP Referer header.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 94.6%
KEV: Not listed

Published

February 27, 2020

Last Modified

November 21, 2024

References (4)

cve@mitrehttp://packetstormsecurity.com/files/141396/Synchronet-BBS-3.16c-For-Windows-Denial-Of-Service.html
cve@mitrehttps://www.exploit-db.com/exploits/41475/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/141396/Synchronet-BBS-3.16c-For-Windows-Denial-Of-Service.html
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/41475/

Data Freshness Timeline

(refreshed 6× 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 14:14 UTCEPSS rescore
2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-05 22:44 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 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 07:15 UTCEG score recompute
2026-05-27 07:15 UTCGHSA enrichment

Publicly available exploits

(1 reference)

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

Exploit-DBEDB-41475
First seen Feb 28, 2017
Synchronet BBS 3.16c - Denial of Service
Open source ↗

Frequently asked(5)

What is CVE-2017-6371?

CVE-2017-6371 is a high vulnerability published on February 27, 2020. Synchronet BBS 3.16c for Windows allows remote attackers to cause a denial of service (service crash) via a long string in the HTTP Referer header.

When was CVE-2017-6371 disclosed?

CVE-2017-6371 was first published in the National Vulnerability Database on February 27, 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-2017-6371 actively exploited?

CVE-2017-6371 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2017-6371?

CVE-2017-6371 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2017-6371?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6371, 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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CVE-2017-6371

📅 Published

🔄 Last Modified

🔗 References (4)