CRITICAL
freerdp: Out-of-bounds write in nsc_rle_decode() function
Published Nov 29, 2018
9.8
CRITICALCVSS 3.0
EPSS 7.40%
Description
FreeRDP 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 corruption and possibly even a remote code execution.
Affected products
-
- Version All versions prior to 2.0.0-rc4StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Check Point Software Technologies Ltd. | FreeRDP | n/a |
|
Configuration 1
Configuration 2
OR
- 14.04
- 16.04
- 18.04
- 18.10
Configuration 3
- 8.0
No data.
Red Hat Enterprise Linux 7
freerdp-0:1.0.2-15.el7_6.1
Fixed · RHSA-2019:0697
Red Hat Enterprise Linux 6
freerdp
Will not fix
Red Hat Enterprise Linux 8
freerdp
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | freerdp-0:1.0.2-15.el7_6.1 | Fixed | RHSA-2019:0697 |
| Red Hat Enterprise Linux 6 | freerdp | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | freerdp | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
8.8 HIGH Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
7.40% 0.07400
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.07400
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.40% (0.07400) | 94.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.40% (0.07400) | 93.62th | v5 (v2026.06.15) |
| Nov 21, 2025 | 7.23% (0.07228) | 91.24th | v4 (v2025.03.14) |
| Nov 18, 2025 | 9.02% (0.09021) | 91.78th | v4 (v2025.03.14) |
| Oct 1, 2025 | 7.23% (0.07228) | 91.29th | v4 (v2025.03.14) |
| Jul 13, 2025 | 8.29% (0.08290) | 91.83th | v4 (v2025.03.14) |
| Mar 30, 2025 | 12.80% (0.12803) | 93.40th | v4 (v2025.03.14) |
| Mar 29, 2025 | 24.81% (0.24807) | 93.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 12.80% (0.12803) | 93.46th | v4 (v2025.03.14) |
| Jan 24, 2025 | 25.78% (0.25782) | 96.75th | v3 (v2023.03.01) |
| Dec 17, 2024 | 27.16% (0.27163) | 96.78th | v3 (v2023.03.01) |
| Nov 8, 2024 | 8.03% (0.08025) | 94.49th | v3 (v2023.03.01) |
| Mar 14, 2024 | 10.00% (0.10001) | 94.73th | v3 (v2023.03.01) |
| Feb 8, 2024 | 8.85% (0.08851) | 94.34th | v3 (v2023.03.01) |
| Nov 23, 2023 | 6.45% (0.06450) | 92.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.49% (0.05490) | 91.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.73% (0.06729) | 91.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.73% (0.06729) | 90.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.73% (0.06729) | 78.90th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.96% (0.02964) | 64.93th | v1 |
| Jan 6, 2022 | 2.96% (0.02964) | 64.59th | v1 |
| Sep 1, 2021 | 2.96% (0.02964) | 81.00th | v1 |
| Apr 14, 2021 | 2.96% (0.02964) | 0.00th | v1 |
Weaknesses (1)
References (11)
- http://www.securityfocus.com/bid/106938 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:0697 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-8788 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1671363 Issue Tracking
- https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659 x_refsource_CONFIRMPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-8788
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/ x_refsource_CONFIRMExploitThird Party Advisory
- https://usn.ubuntu.com/3845-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3845-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2018-8788
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106938 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2019:0697 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-8788 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1671363 | Issue Tracking | |
| https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-8788 | ||
| https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/ | x_refsource_CONFIRMExploitThird Party Advisory | |
| https://usn.ubuntu.com/3845-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3845-2/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2018-8788 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner checkpoint
Published Nov 29, 2018
Updated Sep 16, 2024
Reserved Mar 19, 2018
Link CVE-2018-8788
CISA Vulnrichment
Updated n/a