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Vulnerability details: VCID-5qyd-mg1z-qqc7
Vulnerability ID VCID-5qyd-mg1z-qqc7
Aliases CVE-2018-15378
Summary A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the "unmew11()" function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-125 Out-of-bounds Read
System Score Found at
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01329 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
epss 0.01354 https://api.first.org/data/v1/epss?cve=CVE-2018-15378
ssvc Track https://bugzilla.clamav.net/show_bug.cgi?id=12170
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
ssvc Track https://lists.debian.org/debian-lts-announce/2018/10/msg00014.html
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-15378
cvssv3 5.5 https://nvd.nist.gov/vuln/detail/CVE-2018-15378
ssvc Track https://secuniaresearch.flexerasoftware.com/advisories/83000/
ssvc Track https://security.gentoo.org/glsa/201904-12
ssvc Track https://usn.ubuntu.com/3789-1/
ssvc Track https://usn.ubuntu.com/3789-2/
ssvc Track https://www.flexera.com/company/secunia-research/advisories/SR-2018-23.html
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-15378
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15378
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
201904-12 https://security.gentoo.org/glsa/201904-12
83000 https://secuniaresearch.flexerasoftware.com/advisories/83000/
910430 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910430
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:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
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: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:*:*:*:*:*:*:*
CVE-2018-15378 https://nvd.nist.gov/vuln/detail/CVE-2018-15378
msg00014.html https://lists.debian.org/debian-lts-announce/2018/10/msg00014.html
show_bug.cgi?id=12170 https://bugzilla.clamav.net/show_bug.cgi?id=12170
SR-2018-23.html https://www.flexera.com/company/secunia-research/advisories/SR-2018-23.html
USN-3789-1 https://usn.ubuntu.com/3789-1/
USN-3789-2 https://usn.ubuntu.com/3789-2/
No exploits are available.
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://bugzilla.clamav.net/show_bug.cgi?id=12170
Vector: CVSS:3.0/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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://lists.debian.org/debian-lts-announce/2018/10/msg00014.html
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-15378
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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-15378
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:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://secuniaresearch.flexerasoftware.com/advisories/83000/
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://security.gentoo.org/glsa/201904-12
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://usn.ubuntu.com/3789-1/
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://usn.ubuntu.com/3789-2/
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-11-25T18:47:40Z/ Found at https://www.flexera.com/company/secunia-research/advisories/SR-2018-23.html
Exploit Prediction Scoring System (EPSS)
Percentile 0.79105
EPSS Score 0.01329
Published At July 31, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:30:19.066054+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.11/main.json 37.0.0