CVE-2023-27516

HIGH EPSS 40.5%
Published Oct 12, 20232y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 12, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
40.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-1188
CWE-453

Affected Products 2

VendorProductVersionRange
softethervpn4.41-9782any
softethervpn5.01.9674any

References 3

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2023-1754
    ExploitThird Party Advisory
  • softether.org https://www.softether.org/9-about/News/904-SEVPN202301
    PatchVendor Advisory
  • talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1754

Remediation

  • softether.org https://www.softether.org/9-about/News/904-SEVPN202301
    PatchVendor Advisory