CVE-2018-16463

LOWNVD 3.13.1—

3.1

A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.

CVSS v3: 3.1
EG Score: 3.1(medium)
EPSS: 32.3%
KEV: Not listed

Published

October 30, 2018

Last Modified

November 21, 2024

References (4)

support@hackeronehttps://hackerone.com/reports/237184
support@hackeronehttps://nextcloud.com/security/advisory/?id=NC-SA-2018-013
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/237184
af854a3a-2127-422b-91ae-364da2661108https://nextcloud.com/security/advisory/?id=NC-SA-2018-013

Weakness Classification(1)

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

CWE-384Session Fixation

Data Freshness Timeline

(refreshed 10× in last 7d / 20× 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.

2026-06-04 13:10 UTCepss_batch
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2026-05-28 01:32 UTCEG score recompute
2026-05-28 01:32 UTCGHSA enrichment
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2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-16463?

CVE-2018-16463 is a low vulnerability published on October 30, 2018. A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.

When was CVE-2018-16463 disclosed?

CVE-2018-16463 was first published in the National Vulnerability Database on October 30, 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-2018-16463 actively exploited?

CVE-2018-16463 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-16463?

CVE-2018-16463 has a CVSS v3 base score of 3.1 (NVD).

How do I remediate CVE-2018-16463?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-16463, 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-2018-16463

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-16463?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)