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14 vulnerabilities by softether
CVE-2025-25565 (GCVE-0-2025-25565)
Vulnerability from cvelistv5 – Published: 2025-03-12 00:00 – Updated: 2025-07-19 01:32 Disputed
VLAI?
Summary
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in the Command.c file via the PtMakeCert and PtMakeCert2048 functions. NOTE: the Supplier disputes this because the behavior only allows a user to attack himself by typing a long string on a command line.
Severity ?
9.8 (Critical)
CWE
- n/a
Assigner
References
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CVE-2025-25568 (GCVE-0-2025-25568)
Vulnerability from cvelistv5 – Published: 2025-03-12 00:00 – Updated: 2025-07-19 01:24 Disputed
VLAI?
Summary
SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function. NOTE: the Supplier disputes this because the use-after-free is not in the VPN software, but is instead in a separate tool that has no untrusted input and runs under the user's own privileges (it is a stress-testing tool for a networking stack).
Severity ?
9.8 (Critical)
CWE
- n/a
Assigner
References
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CVE-2025-25566 (GCVE-0-2025-25566)
Vulnerability from cvelistv5 – Published: 2025-03-12 00:00 – Updated: 2025-07-19 01:35 Disputed
VLAI?
Summary
Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function. NOTE: the Supplier disputes this because the behavior is limited to a single allocation of a few hundred bytes with a command-line tool.
Severity ?
5.6 (Medium)
CWE
- n/a
Assigner
References
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CVE-2025-25567 (GCVE-0-2025-25567)
Vulnerability from cvelistv5 – Published: 2025-03-12 00:00 – Updated: 2025-07-19 01:29 Disputed
VLAI?
Summary
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this because the behavior only enables a local user to attack himself through the UI,
Severity ?
9.8 (Critical)
CWE
- n/a
Assigner
References
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CVE-2023-22308 (GCVE-0-2023-22308)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2024-08-02 10:07
VLAI?
Summary
An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.
Severity ?
7.5 (High)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
5.01.9674
Affected: 5.02 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-27395 (GCVE-0-2023-27395)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2024-08-02 12:09
VLAI?
Summary
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.
Severity ?
9 (Critical)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
4.41-9782-beta
Affected: 5.01.9674 Affected: 5.02 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-22325 (GCVE-0-2023-22325)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2024-08-02 10:07
VLAI?
Summary
A denial of service vulnerability exists in the DCRegister DDNS_RPC_MAX_RECV_SIZE functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
Severity ?
5.9 (Medium)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
4.41-9782-beta
Affected: 5.01.9674 Affected: 5.02 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-23581 (GCVE-0-2023-23581)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2024-08-02 10:35
VLAI?
Summary
A denial-of-service vulnerability exists in the vpnserver EnSafeHttpHeaderValueStr functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service.
Severity ?
7.5 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
5.01.9674
Affected: 5.02 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-25774 (GCVE-0-2023-25774)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2024-08-02 11:32
VLAI?
Summary
A denial-of-service vulnerability exists in the vpnserver ConnectionAccept() functionality of SoftEther VPN 5.02. A set of specially crafted network connections can lead to denial of service. An attacker can send a sequence of malicious packets to trigger this vulnerability.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
5.01.9674
Affected: 5.02 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-27516 (GCVE-0-2023-27516)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2024-08-02 12:16
VLAI?
Summary
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.
Severity ?
7.3 (High)
CWE
- CWE-453 - Insecure Default Variable Initialization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
4.41-9782-beta
Affected: 5.01.9674 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-32275 (GCVE-0-2023-32275)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2025-11-04 19:16
VLAI?
Summary
An information disclosure vulnerability exists in the CtEnumCa() functionality of SoftEther VPN 4.41-9782-beta and 5.01.9674. Specially crafted network packets can lead to a disclosure of sensitive information. An attacker can send packets to trigger this vulnerability.
Severity ?
5.5 (Medium)
CWE
- CWE-201 - Information Exposure Through Sent Data
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
4.41-9782-beta
Affected: 5.01.9674 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-32634 (GCVE-0-2023-32634)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2025-11-04 19:16
VLAI?
Summary
An authentication bypass vulnerability exists in the CiRpcServerThread() functionality of SoftEther VPN 5.01.9674 and 4.41-9782-beta. An attacker can perform a local man-in-the-middle attack to trigger this vulnerability.
Severity ?
7.8 (High)
CWE
- CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
4.41-9782-beta
Affected: 5.01.9674 |
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2023-31192 (GCVE-0-2023-31192)
Vulnerability from cvelistv5 – Published: 2023-10-12 15:27 – Updated: 2025-11-04 19:15
VLAI?
Summary
An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
Severity ?
5.3 (Medium)
CWE
- CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| SoftEther VPN | SoftEther VPN |
Affected:
5.01.9674
|
Credits
Discovered by Lilith >_> of Cisco Talos.
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CVE-2019-11868 (GCVE-0-2019-11868)
Vulnerability from cvelistv5 – Published: 2019-07-29 16:28 – Updated: 2024-08-04 23:03
VLAI?
Summary
See.sys, up to version 4.25, in SoftEther VPN Server versions 4.29 or older, allows a user to call an IOCTL specifying any kernel address to which arbitrary bytes are written to.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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