CVE-2018-6562

HIGHNVD 7.5

7.5

totemomail Encryption Gateway before 6.0_b567 allows remote attackers to obtain sensitive information about user sessions and encryption key material via a JSONP hijacking attack.

CVSS v3: 7.5
EG Score: —
EPSS: 39.0%
KEV: Not listed

Published

May 18, 2018

Last Modified

November 21, 2024

References (6)

cve@mitrehttp://packetstormsecurity.com/files/147637/Totemomail-Encryption-Gateway-6.0.0_Build_371-JSONP-Hijacking.html
cve@mitrehttp://www.securityfocus.com/archive/1/542016/100/0/threaded
cve@mitrehttps://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2018-002_totemo_json_hijacking.txt
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/147637/Totemomail-Encryption-Gateway-6.0.0_Build_371-JSONP-Hijacking.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/542016/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2018-002_totemo_json_hijacking.txt

Weakness Classification(1)

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

CWE-345Insufficient Verification of Data Authenticity

Data Freshness Timeline

(refreshed 6× in last 7d / 6× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 00:46 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-6562?

CVE-2018-6562 is a high vulnerability published on May 18, 2018. totemomail Encryption Gateway before 6.0_b567 allows remote attackers to obtain sensitive information about user sessions and encryption key material via a JSONP hijacking attack.

When was CVE-2018-6562 disclosed?

CVE-2018-6562 was first published in the National Vulnerability Database on May 18, 2018, 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-2018-6562 actively exploited?

CVE-2018-6562 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-6562?

CVE-2018-6562 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-6562?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-6562, 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-2018-6562

📅 Published

🔄 Last Modified

🔗 References (6)