libvncserver: libvncserver/rre.c allows out-of-bounds access via encodings
Published Jun 17, 2020
5.4
MEDIUMCVSS 3.1
EPSS 1.59%
Description
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
Affected products
No data.
Configuration 1
- < 0.9.12
Configuration 2
- 14.04
- 16.04
- 16.04
- 18.04
- 18.10
- 20.04
Configuration 3
- 8.0
- 9.0
Configuration 4
- ≥ 3.0.0.0 · < 3.2.1.0
Running on/with
- n/a
Configuration 5
- ≥ 3.0.0.0 · < 3.2.1.0
Running on/with
- n/a
Configuration 6
- ≥ 3.0.0.0 · < 3.2.1.0
Running on/with
- n/a
Configuration 7
- ≥ 3.0.0.0 · < 3.2.1.0
Running on/with
- n/a
Configuration 8
- ≥ 3.0.0.0 · < 3.2.1.0
Running on/with
- n/a
Configuration 9
- ≥ 3.0.0.0 · < 3.2.1.0
Running on/with
- n/a
No data.
Red Hat Enterprise Linux 6
libvncserver
Out of support scope
Red Hat Enterprise Linux 6
vino
Out of support scope
Red Hat Enterprise Linux 7
libvncserver
Fix deferred
Red Hat Enterprise Linux 7
vino
Fix deferred
Red Hat Enterprise Linux 8
libvncserver
Fix deferred
Red Hat Enterprise Linux 8
vino
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libvncserver | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | vino | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | libvncserver | Fix deferred | n/a |
| Red Hat Enterprise Linux 7 | vino | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | libvncserver | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | vino | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:P/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (13 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.59% (0.01590) | 74.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.63% (0.01634) | 73.12th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.02% (0.01019) | 75.67th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00124) | 48.44th | v3 (v2023.03.01) |
| May 8, 2024 | 0.13% (0.00125) | 46.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00092) | 37.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 14.00% (0.14004) | 90.93th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.04% (0.07038) | 83.71th | v1 |
| Jan 6, 2022 | 7.04% (0.07038) | 83.55th | v1 |
| Jan 5, 2022 | 1.66% (0.01659) | 74.85th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
References (11)
- https://access.redhat.com/security/cve/CVE-2020-14404 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1860337 Issue Tracking
- https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/LibVNC/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfff x_refsource_MISCPatchThird Party Advisory
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13 x_refsource_MISCRelease NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-14404
- https://usn.ubuntu.com/4434-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4573-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2020-14404
Change history (0)
No recorded changes yet.