VulnerabilityModified
CVE-2023-27516
An authentication bypass vulnerability exists in the CiRpcAccepted() functionality of SoftEther VPN 4.41-9782-beta and 5.01.9674.
HIGH 7.8EPSS 0.53%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-453, CWE-1188
- Affected
- softether/vpn
- Source
- talos-cna@cisco.com
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1754Exploit, Third Party Advisory
- https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1754Exploit, Third Party Advisory
- https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1754
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.