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Vulnerability details: VCID-46ev-hf8j-u3es
Vulnerability ID VCID-46ev-hf8j-u3es
Aliases CVE-2019-15961
Summary A vulnerability in the email parsing module Clam AntiVirus (ClamAV) Software versions 0.102.0, 0.101.4 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to inefficient MIME parsing routines that result in extremely long scan times of specially formatted email files. An attacker could exploit this vulnerability by sending a crafted email file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to scan the crafted email file indefinitely, resulting in a denial of service condition.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-20 Improper Input Validation
CWE-400 Uncontrolled Resource Consumption
System Score Found at
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2019-15961
cvssv3.1 7.5 https://bugzilla.clamav.net/show_bug.cgi?id=12380
ssvc Track https://bugzilla.clamav.net/show_bug.cgi?id=12380
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2020/02/msg00016.html
ssvc Track https://lists.debian.org/debian-lts-announce/2020/02/msg00016.html
cvssv2 7.1 https://nvd.nist.gov/vuln/detail/CVE-2019-15961
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2019-15961
cvssv3.1 7.5 https://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010
ssvc Track https://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010
cvssv3.1 7.5 https://security.gentoo.org/glsa/202003-46
ssvc Track https://security.gentoo.org/glsa/202003-46
cvssv3.1 7.5 https://usn.ubuntu.com/4230-2/
ssvc Track https://usn.ubuntu.com/4230-2/
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-15961
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15961
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
202003-46 https://security.gentoo.org/glsa/202003-46
945265 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=945265
cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
cpe:2.3:a:clamav:clamav:0.102.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:clamav:clamav:0.102.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.1-042:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.1-042:*:*:*:*:*:*:*
cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.2-023:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.2-023:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
CSCvr56010 https://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010
CVE-2019-15961 https://nvd.nist.gov/vuln/detail/CVE-2019-15961
msg00016.html https://lists.debian.org/debian-lts-announce/2020/02/msg00016.html
show_bug.cgi?id=12380 https://bugzilla.clamav.net/show_bug.cgi?id=12380
USN-4230-1 https://usn.ubuntu.com/4230-1/
USN-4230-2 https://usn.ubuntu.com/4230-2/
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://bugzilla.clamav.net/show_bug.cgi?id=12380
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-15T16:22:50Z/ Found at https://bugzilla.clamav.net/show_bug.cgi?id=12380
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2020/02/msg00016.html
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-15T16:22:50Z/ Found at https://lists.debian.org/debian-lts-announce/2020/02/msg00016.html
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2019-15961
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:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-15961
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://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-15T16:22:50Z/ Found at https://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://security.gentoo.org/glsa/202003-46
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-15T16:22:50Z/ Found at https://security.gentoo.org/glsa/202003-46
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://usn.ubuntu.com/4230-2/
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-15T16:22:50Z/ Found at https://usn.ubuntu.com/4230-2/
Exploit Prediction Scoring System (EPSS)
Percentile 0.82708
EPSS Score 0.01956
Published At Aug. 14, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:10.844909+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.16/community.json 37.0.0