CVE-2018-8786

Name: CVE-2018-8786
Creator: NVD / NIST
Published: 2018-11-29T18:29:00.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 8.16%

Last modified Jun 17, 2026

CVE-2018-8786 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.. EPSS estimates a 8.16% chance of exploitation in the next 30 days.

Description

FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

8.16%

94.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Freerdp	Freerdp	<= 1.2.0	—
Freerdp	Freerdp	2.0.0	Rc1
Canonical	Ubuntu Linux	14.04	—
Canonical	Ubuntu Linux	16.04	—
Canonical	Ubuntu Linux	18.04	—
Canonical	Ubuntu Linux	18.10	—
Debian	Debian Linux	8.0	—
Fedoraproject	Fedora	28	—
Redhat	Enterprise Linux Desktop	7.0	—
Redhat	Enterprise Linux Server	7.0	—
Redhat	Enterprise Linux Server Aus	7.6	—
Redhat	Enterprise Linux Server Eus	7.6	—
Redhat	Enterprise Linux Server Tus	7.6	—
Redhat	Enterprise Linux Workstation	7.0	—

References

http://www.securityfocus.com/bid/106938Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0697Third Party Advisory
https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00015.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX/
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/Exploit, Third Party Advisory
https://usn.ubuntu.com/3845-1/Third Party Advisory
https://usn.ubuntu.com/3845-2/Third Party Advisory
http://www.securityfocus.com/bid/106938Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:0697Third Party Advisory
https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00015.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX/
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/Exploit, Third Party Advisory
https://usn.ubuntu.com/3845-1/Third Party Advisory
https://usn.ubuntu.com/3845-2/Third Party Advisory

Timeline

Published: Nov 29, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8786?

How severe is CVE-2018-8786?

CVE-2018-8786 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 8.16% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8786?

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.

Are you affected by CVE-2018-8786?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST