High severity7.3NVD Advisory· Published Oct 12, 2023· Updated Jun 17, 2026
CVE-2023-27516
CVE-2023-27516
Description
An authentication bypass vulnerability exists in the CiRpcAccepted() functionality of SoftEther VPN 4.41-9782-beta and 5.01.9674. A specially crafted network packet can lead to unauthorized access. An attacker can send a network request to trigger this vulnerability.
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Affected products
4cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*
- cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*
- Range: 4.41-9782-beta, 5.01.9674
- SoftEther VPN/SoftEther VPNv5Range: 4.41-9782-beta
Patches
Vulnerability mechanics
References
3- www.softether.org/9-about/News/904-SEVPN202301nvdPatchVendor Advisory
- talosintelligence.com/vulnerability_reports/TALOS-2023-1754nvdExploitThird Party Advisory
- www.talosintelligence.com/vulnerability_reports/TALOS-2023-1754nvd
News mentions
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