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CVE-2018-8786· NVD / CVE Program· CNA checkpoint

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_

Noroxi assessment

Priority: Plan (action score 41/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 8.1% (FIRST EPSS); higher than 94.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: freerdp2 (Debian:12) 2.0.0~git20181120.1.e21b72c95+dfsg1-1; freerdp (Debian:8) 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3; freerdp2 (openSUSE:Tumbleweed) 2.4.0-2.1.

Add it to your regular patch cycle. Upgrade to freerdp2 (Debian:12) 2.0.0~git20181120.1.e21b72c95+dfsg1-1; freerdp (Debian:8) 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3; freerdp2 (openSUSE:Tumbleweed) 2.4.0-2.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

CriticalCVSS 9.8 · v3.1—No exploit Fix available
Published
Nov 29, 2018
Updated
Jun 16, 2026
EPSS
8.1% · 94th percentile

Report tools

JSON

Action score

41

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 8.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
freerdpfreerdp
canonicalubuntu linux
debiandebian linux
fedoraprojectfedora
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux server aus
redhatenterprise linux server eus
redhatenterprise linux server tus
redhatenterprise linux workstation

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux18.10
  • debian debian linux8.0
  • fedoraproject fedora28
  • freerdp freerdpup to 1.2.0 inclusive
  • freerdp freerdp2.0.0
  • redhat enterprise linux desktop7.0
  • redhat enterprise linux server7.0
  • redhat enterprise linux server aus7.6
  • redhat enterprise linux server eus7.6
  • redhat enterprise linux server tus7.6
  • redhat enterprise linux workstation7.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (checkpoint). Independent of NVD's CPE analysis and usually ahead of it.

  • Check Point Software Technologies Ltd. FreeRDP

    • All versions prior to 2.0.0-rc4affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12freerdp2before 2.0.0~git20181120.1.e21b72c95+dfsg1-12.0.0~git20181120.1.e21b72c95+dfsg1-1
Debian:8freerdpbefore 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u31.1.0~git20140921.1.440916e+dfsg1-13~deb8u3
openSUSE:Tumbleweedfreerdp2before 2.4.0-2.12.4.0-2.1
Red Hat:enterprise_linux:7::clientfreerdpbefore 0:1.0.2-15.el7_6.10:1.0.2-15.el7_6.1
Red Hat:enterprise_linux:7::clientfreerdp-debuginfobefore 0:1.0.2-15.el7_6.10:1.0.2-15.el7_6.1
Red Hat:enterprise_linux:7::clientfreerdp-develbefore 0:1.0.2-15.el7_6.10:1.0.2-15.el7_6.1
Red Hat:enterprise_linux:7::clientfreerdp-libsbefore 0:1.0.2-15.el7_6.10:1.0.2-15.el7_6.1
Red Hat:enterprise_linux:7::clientfreerdp-pluginsbefore 0:1.0.2-15.el7_6.10:1.0.2-15.el7_6.1
SUSE:Linux Enterprise Desktop 12 SP3freerdpbefore 2.0.0~git.1463131968.4e66df7-12.8.12.0.0~git.1463131968.4e66df7-12.8.1
SUSE:Linux Enterprise Software Development Kit 12 SP5freerdpbefore 2.1.2-12.20.12.1.2-12.20.1
SUSE:Linux Enterprise Workstation Extension 12 SP5vinagrebefore 3.20.2-16.3.33.20.2-16.3.3
SUSE:Linux Enterprise Workstation Extension 15freerdpbefore 2.0.0~rc4-3.3.12.0.0~rc4-3.3.1

Same product

freerdp: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-8787FreeRDP prior to version 2.0.0-rc4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function gdi_Bitmap_Decompress
    42Plan
  • CVE-2018-8788FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory co
    41Plan
  • CVE-2018-8785FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress() that results in a memory corruption a
    41Plan
  • CVE-2018-8784FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corr
    41Plan
  • CVE-2024-32460FreeRDP Out-Of-Bounds Read in interleaved_decompress
    40Plan
  • CVE-2024-32459FreeRDP Out-Of-Bounds Read in ncrush_decompress
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:freerdp1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3 · Debian:8Package registry (OSV)
debian:freerdp22.0.0~git20181120.1.e21b72c95+dfsg1-1 · Debian:12Package registry (OSV)
opensuse:freerdp22.4.0-2.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:freerdp0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:freerdp-debuginfo0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:freerdp-devel0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:freerdp-libs0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:freerdp-plugins0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:freerdp2.0.0~git.1463131968.4e66df7-12.8.1 · SUSE:Linux Enterprise Desktop 12 SP3Package registry (OSV)
suse:vinagre3.20.2-16.3.3 · SUSE:Linux Enterprise Workstation Extension 12 SP5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-680 · Integer Overflow to Buffer Overflow

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records