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CVE-2020-13396An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage…
- 7.1HighCVSS base score
- 2.3%Exploitation in 30 daysEPSS · top 16% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.
Timeline
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L |
- EPSS (exploitation in 30 days)
- 2.3% · top 16% of all CVEs (14 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
n/a
- affected n/a
References
References8
- https://github.com/FreeRDP/FreeRDP/compare/2.1.0...2.1.1 (opens in a new tab)x_transferred
- https://github.com/FreeRDP/FreeRDP/commit/8fb6336a4072abcee8ce5bd6ae91104628c7bb69 (opens in a new tab)x_transferred
- https://github.com/FreeRDP/FreeRDP/commit/48361c411e50826cb602c7aab773a8a20e1da6bc (opens in a new tab)x_transferred
- USN-4379-1 (opens in a new tab)vendor-advisoryx_transferred
- USN-4382-1 (opens in a new tab)vendor-advisoryx_transferred
- openSUSE-SU-2020:1090 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20200829 [SECURITY] [DLA 2356-1] freerdp security update (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20231007 [SECURITY] [DLA 3606-1] freerdp2 security update (opens in a new tab)mailing-listx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-5653 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-13396)Record last updated .