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Vulnerability details: VCID-k3m4-tbee-aaar
Vulnerability ID VCID-k3m4-tbee-aaar
Aliases CVE-2020-25708
Summary A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-369 Divide By Zero
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-25708.html
rhas Moderate https://access.redhat.com/errata/RHSA-2021:1811
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25708.json
epss 0.00169 https://api.first.org/data/v1/epss?cve=CVE-2020-25708
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generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25708
generic_textual Medium https://github.com/LibVNC/libvncserver/issues/409
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-25708
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-25708
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-25708
generic_textual Medium https://ubuntu.com/security/notices/USN-4636-1
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-25708.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25708.json
https://api.first.org/data/v1/epss?cve=CVE-2020-25708
https://bugzilla.redhat.com/show_bug.cgi?id=1896739
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25708
https://github.com/LibVNC/libvncserver/issues/409
https://lists.debian.org/debian-lts-announce/2022/09/msg00035.html
https://ubuntu.com/security/notices/USN-4636-1
cpe:2.3:a:libvncserver_project:libvncserver:0.9.12:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libvncserver_project:libvncserver:0.9.12:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CVE-2020-25708 https://nvd.nist.gov/vuln/detail/CVE-2020-25708
RHSA-2021:1811 https://access.redhat.com/errata/RHSA-2021:1811
USN-4636-1 https://usn.ubuntu.com/4636-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25708.json
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-2020-25708
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-2020-25708
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: 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-2020-25708
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 0.34719
EPSS Score 0.00169
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.