HIGH
CVE-2023-32634
CWE-300Published: October 12, 2023· Updated: Jun 17, 2026
7.4
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2023-32634 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.4.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
softether1 product(s)
vpn
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (5)
→
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755Exploit · Third Party Advisory
→
https://www.softether.org/9-about/News/904-SEVPN202301Patch · Vendor Advisory
→
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1755Exploit · Third Party Advisory
→
https://www.softether.org/9-about/News/904-SEVPN202301Patch · Vendor Advisory
Quick Facts
CVE IDCVE-2023-32634
CVSS Score7.4 / 10
SeverityHIGH
WeaknessCWE-300
CISA KEVNo
Affected1 vendor(s)
PublishedOct 12, 2023
Related CVEs (CWE-300)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-32634 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.