CVE-2020-11086
MEDIUMCVSS 5.4/10EPSS 1.43%
Last modified
CVE-2020-11086 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0.. EPSS estimates a 1.43% chance of exploitation in the next 30 days.
Description
In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freerdp | Freerdp | < 2.1.0 |
| Opensuse | Leap | 15.1 |
| Debian | Debian Linux | 10.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlThird Party Advisory
- https://github.com/FreeRDP/FreeRDP/commit/c098f21fdaadca57ff649eee1674f6cc321a2ec4Patch, Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg8v-w34r-c974Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlThird Party Advisory
- https://github.com/FreeRDP/FreeRDP/commit/c098f21fdaadca57ff649eee1674f6cc321a2ec4Patch, Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg8v-w34r-c974Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-11086?
In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0.
How severe is CVE-2020-11086?
CVE-2020-11086 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.
How do I fix CVE-2020-11086?
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-2020-11086?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST