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Vulnerability details: VCID-xsez-3gum-tyhg
Vulnerability ID VCID-xsez-3gum-tyhg
Aliases CVE-2019-15680
Summary TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2019-15680
cvssv3 4.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2019-15680
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-15680
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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-2019-15680
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-2019-15680
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 0.49056
EPSS Score 0.00258
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:42:19.818385+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4407-1/ 37.0.0