CVE-2023-32634

HIGHNVD 7.87.8—

7.8

An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 10.1%
KEV: Not listed

Published

October 12, 2023

Last Modified

November 4, 2025

References (5)

talos-cna@ciscohttps://talosintelligence.com/vulnerability_reports/TALOS-2023-1755
talos-cna@ciscohttps://www.softether.org/9-about/News/904-SEVPN202301
af854a3a-2127-422b-91ae-364da2661108https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755
af854a3a-2127-422b-91ae-364da2661108https://www.softether.org/9-about/News/904-SEVPN202301
af854a3a-2127-422b-91ae-364da2661108https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1755

Weakness Classification(1)

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

CWE-300

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 16:52 UTCepss_batch
2026-05-24 15:58 UTCEG score recompute
2026-05-24 15:58 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-32634?

CVE-2023-32634 is a high vulnerability published on October 12, 2023. An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability.

When was CVE-2023-32634 disclosed?

CVE-2023-32634 was first published in the National Vulnerability Database on October 12, 2023, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-32634 actively exploited?

CVE-2023-32634 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-32634?

CVE-2023-32634 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2023-32634?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-32634, 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-2023-32634

📅 Published

🔄 Last Modified

🔗 References (5)