Vulnerability Details : 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. 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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2023-27395
- cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*
- cpe:2.3:a:softether:vpn:5.02:*:*:*:*:*:*:*
- cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-27395
0.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-27395
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST | |
9.0
|
CRITICAL | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
2.2
|
6.0
|
Talos |
CWE ids for CVE-2023-27395
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A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: talos-cna@cisco.com (Secondary)
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-27395
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https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1735
TALOS-2023-1735 || Cisco Talos Intelligence Group - Comprehensive Threat Intelligence
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https://www.softether.org/9-about/News/904-SEVPN202301
2023/06/30: SE202301: Security Advisory: CVE-2023-27395 etc: Fixed 6 vulnerabilities of SoftEther VPN in cooperation with Cisco Systems, Inc. - SoftEther VPN ProjectPatch;Vendor Advisory
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https://talosintelligence.com/vulnerability_reports/TALOS-2023-1735
TALOS-2023-1735 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
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