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Vulnerability details: VCID-jg4g-h8js-hqdn
Vulnerability ID VCID-jg4g-h8js-hqdn
Aliases CVE-2018-18512
Summary A use-after-free vulnerability can occur while playing a sound notification in Thunderbird. The memory storing the sound data is immediately freed, although the sound is still being played asynchronously, leading to a potentially exploitable crash.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
epss 0.00442 https://api.first.org/data/v1/epss?cve=CVE-2018-18512
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-18512
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2018-18512
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-03
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-18512
https://bugzilla.mozilla.org/show_bug.cgi?id=1482659
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18356
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18500
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18501
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18505
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18509
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18512
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18513
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5785
https://www.mozilla.org/security/advisories/mfsa2019-03/
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVE-2018-18512 https://nvd.nist.gov/vuln/detail/CVE-2018-18512
mfsa2019-03 https://www.mozilla.org/en-US/security/advisories/mfsa2019-03
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-18512
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-2018-18512
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 0.62365
EPSS Score 0.00442
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:10:01.176345+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2019/mfsa2019-03.yml 37.0.0