CVE-2019-11868
HIGHCVSS 7.8/10EPSS 0.35%
Last modified
CVE-2019-11868 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Softether | See.Sys | <= 4.25 |
References
- https://downwithup.github.io/CVEPostsThird Party Advisory
- https://github.com/SoftEtherVPN/SoftEtherVPN/tree/master/src/SeeThird Party Advisory
- https://www.softether.org/9-about/News/900-SEVPN201901Vendor Advisory
- https://downwithup.github.io/CVEPostsThird Party Advisory
- https://github.com/SoftEtherVPN/SoftEtherVPN/tree/master/src/SeeThird Party Advisory
- https://www.softether.org/9-about/News/900-SEVPN201901Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-11868?
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.
How severe is CVE-2019-11868?
CVE-2019-11868 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.
How do I fix CVE-2019-11868?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-11868?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST