VulnerabilityModified
CVE-2023-27395
A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02.
HIGH 8.1EPSS 1.54%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to arbitrary code execution. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.54% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-787
- Affected
- softether/vpn
- Source
- talos-cna@cisco.com
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1735Exploit, Third Party Advisory
- https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1735Exploit, Third Party Advisory
- https://www.softether.org/9-about/News/904-SEVPN202301Patch, Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1735
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.