CVE-2015-8400

HIGHNVD 7.47.4—

7.4

The HTTPS fallback implementation in Shell In A Box (aka shellinabox) before 2.19 makes it easier for remote attackers to conduct DNS rebinding attacks via the "/plain" URL.

CVSS v3: 7.4
EG Score: 7.4(medium)
EPSS: 68.5%
KEV: Not listed

Published

January 12, 2016

Last Modified

May 6, 2026

References (12)

cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2016-January/175117.html
cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2016-January/175224.html
cve@mitrehttp://www.openwall.com/lists/oss-security/2015/12/02/6
cve@mitrehttp://www.openwall.com/lists/oss-security/2015/12/02/7
cve@mitrehttps://github.com/shellinabox/shellinabox/issues/355
cve@mitrehttps://github.com/shellinabox/shellinabox/releases/tag/v2.19
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175117.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175224.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/12/02/6
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/12/02/7
af854a3a-2127-422b-91ae-364da2661108https://github.com/shellinabox/shellinabox/issues/355
af854a3a-2127-422b-91ae-364da2661108https://github.com/shellinabox/shellinabox/releases/tag/v2.19

Data Freshness Timeline

(refreshed 9× 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
2026-06-07 15:22 UTCEPSS rescore
2026-06-07 00:29 UTCOSV refresh
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 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 20:10 UTCEPSS rescore
2026-06-01 13:49 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
2026-05-29 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

Frequently asked(5)

What is CVE-2015-8400?

CVE-2015-8400 is a high vulnerability published on January 12, 2016. The HTTPS fallback implementation in Shell In A Box (aka shellinabox) before 2.19 makes it easier for remote attackers to conduct DNS rebinding attacks via the "/plain" URL.

When was CVE-2015-8400 disclosed?

CVE-2015-8400 was first published in the National Vulnerability Database on January 12, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-8400 actively exploited?

CVE-2015-8400 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 68.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-8400?

CVE-2015-8400 has a CVSS v3 base score of 7.4 (NVD).

How do I remediate CVE-2015-8400?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8400, 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-2015-8400

📅 Published

🔄 Last Modified

🔗 References (12)