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Vulnerability details: VCID-3hc8-7kyn-aaan
Vulnerability ID VCID-3hc8-7kyn-aaan
Aliases CVE-2016-9941
Summary Heap-based buffer overflow in rfbproto.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message containing a subrectangle outside of the client drawing area.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122 Heap-based Buffer Overflow
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9941.html
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9941.json
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rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1410166
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9941
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9942
cvssv2 6.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual Medium https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-9941
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2016-9941
archlinux Critical https://security.archlinux.org/AVG-124
generic_textual Medium https://ubuntu.com/security/notices/USN-3171-1
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9941.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9941.json
https://api.first.org/data/v1/epss?cve=CVE-2016-9941
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9941
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9942
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/LibVNC/libvncserver/pull/137
https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://security.gentoo.org/glsa/201702-24
https://ubuntu.com/security/notices/USN-3171-1
https://usn.ubuntu.com/4587-1/
http://www.debian.org/security/2017/dsa-3753
http://www.securityfocus.com/bid/95170
1410166 https://bugzilla.redhat.com/show_bug.cgi?id=1410166
850007 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850007
ASA-201701-20 https://security.archlinux.org/ASA-201701-20
AVG-124 https://security.archlinux.org/AVG-124
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:*:*:*:*:*:*:*:*
CVE-2016-9941 https://nvd.nist.gov/vuln/detail/CVE-2016-9941
USN-3171-1 https://usn.ubuntu.com/3171-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9941.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:M/Au:N/C:P/I:P/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9941
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9941
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 0.67477
EPSS Score 0.00617
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.