CVE-2018-16793

HIGHNVD 8.68.6—Trending — 3 sources updated this week

8.6

Rollup 18 for Microsoft Exchange Server 2010 SP3 and previous versions has an SSRF vulnerability via the username parameter in /owa/auth/logon.aspx in the OWA (Outlook Web Access) login page.

CVSS v3: 8.6
EG Score: 8.6(medium)
EPSS: 84.2%
KEV: Not listed

Published

September 21, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttp://packetstormsecurity.com/files/149411/Rollup-18-For-Microsoft-Exchange-Server-2010-SP3-Server-Side-Request-Forgery.html
cve@mitrehttp://seclists.org/fulldisclosure/2018/Sep/20
cve@mitrehttp://www.securityfocus.com/bid/105386
cve@mitrehttps://seclists.org/bugtraq/2018/Sep/38
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/149411/Rollup-18-For-Microsoft-Exchange-Server-2010-SP3-Server-Side-Request-Forgery.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2018/Sep/20
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105386
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/bugtraq/2018/Sep/38

Weakness Classification(1)

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

CWE-918Server-Side Request Forgery (SSRF)

Data Freshness Timeline

(refreshed 12× in last 7d / 18× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 02:55 UTCEG score recompute
2026-05-28 02:54 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
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

Frequently asked(5)

What is CVE-2018-16793?

CVE-2018-16793 is a high vulnerability published on September 21, 2018. Rollup 18 for Microsoft Exchange Server 2010 SP3 and previous versions has an SSRF vulnerability via the username parameter in /owa/auth/logon.aspx in the OWA (Outlook Web Access) login page.

When was CVE-2018-16793 disclosed?

CVE-2018-16793 was first published in the National Vulnerability Database on September 21, 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-2018-16793 actively exploited?

CVE-2018-16793 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-16793?

CVE-2018-16793 has a CVSS v3 base score of 8.6 (NVD).

How do I remediate CVE-2018-16793?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-16793, 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-2018-16793

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-16793?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)