CVE-2018-8786

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 8%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation8% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
8%
EPSS %ILE
94%
KEV
Not listed

Published

November 29, 2018

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated Aug 25, 2026
Patch available. Sources: redhat, github_commit.
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2019:0697
generic

CVE-2018-8784 - PSIRT.COM

http://www.securityfocus.com/bid/106938
generic

[SECURITY] Fedora 28 Update: remmina-1.3.3-1.fc28 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX/
generic Patch Available

[SECURITY] [DLA 1666-1] freerdp security update

https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html
github_commit

commit 445a5a42c500 (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 445a5a42c500 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3
generic

Reverse RDP Attack: Code Execution on RDP Clients - Check Point Research

https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibfreerdp1 (1.0.2-2ubuntu1.2) @ trusty2026-05-23ubuntu
ubuntulibxfreerdp-client1.1 (1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.10.1) @ cosmic2026-05-23ubuntu
redhatfreerdp-0:1.0.2-15.el7_6.12019-04-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
freerdp2—2.0.0~git20181120.1.e21b72c95+dfsg1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
freerdp2—2.0.0~git20181120.1.e21b72c95+dfsg1-1—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
freerdp1.1.0~git20140921.1.440916e+dfsg1-10 ... 1.1.0~git20140921.1.440916e+dfsg1-9 (13 versions)1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 120 total refreshes for this CVE.

  1. 2026-08-25 13:45 UTCEPSS rescore
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  9. 2026-07-23 01:37 UTCEG score recompute
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  23. 2026-07-13 22:27 UTCEPSS rescore
  24. 2026-07-12 19:37 UTCOSV refresh
  25. 2026-07-12 05:43 UTCEPSS rescore
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  27. 2026-07-08 15:11 UTCEPSS rescore
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  48. 2026-06-24 04:29 UTCOSV refresh
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  74. 2026-06-07 09:00 UTCOSV refresh
  75. 2026-06-06 13:45 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-8786?
CVE-2018-8786 is a critical vulnerability published on November 29, 2018. FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function updatereadbitmap_update() and results in a memory corruption and probably even a remote code execution.
When was CVE-2018-8786 disclosed?
CVE-2018-8786 was first published in the National Vulnerability Database on November 29, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-8786 actively exploited?
CVE-2018-8786 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8% probability of exploitation in the next 30 days, which ranks it in the top 5.6% of all scored CVEs.
What is the CVSS score of CVE-2018-8786?
CVE-2018-8786 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-8786?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-8786, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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