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Vulnerability details: VCID-amtn-98yp-s3d3
Vulnerability ID VCID-amtn-98yp-s3d3
Aliases CVE-2020-14399
Summary An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.
Status Disputed
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
System Score Found at
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02418 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
epss 0.02432 https://api.first.org/data/v1/epss?cve=CVE-2020-14399
cvssv3.1 4.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-14399
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-14399
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-14399.json
https://api.first.org/data/v1/epss?cve=CVE-2020-14399
https://bugzilla.redhat.com/show_bug.cgi?id=1860354
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14399
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2d
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13
https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html
cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
CVE-2020-14399 https://nvd.nist.gov/vuln/detail/CVE-2020-14399
USN-4434-1 https://usn.ubuntu.com/4434-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-14399
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-14399
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.84482
EPSS Score 0.02418
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T17:24:50.199158+00:00 NVD CVE Status Improver Improve https://cveawg.mitre.org/api/cve/CVE-2020-14399 37.0.0
2025-07-31T08:35:05.948479+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.12/community.json 37.0.0