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Vulnerability details: VCID-h27q-8sx3-pkd1
Vulnerability ID VCID-h27q-8sx3-pkd1
Aliases CVE-2018-15586
Summary Enigmail before 2.0.6 is prone to to OpenPGP signatures being spoofed for arbitrary messages using a PGP/INLINE signature wrapped within a specially crafted multipart HTML email.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-347 Improper Verification of Cryptographic Signature
System Score Found at
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
epss 0.00227 https://api.first.org/data/v1/epss?cve=CVE-2018-15586
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-15586
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2018-15586
Reference id Reference type URL
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
https://api.first.org/data/v1/epss?cve=CVE-2018-15586
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15586
http://seclists.org/fulldisclosure/2019/Apr/38
https://github.com/RUB-NDS/Johnny-You-Are-Fired
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
https://sourceforge.net/p/enigmail/bugs/849/
http://www.openwall.com/lists/oss-security/2019/04/30/4
cpe:2.3:a:enigmail:enigmail:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:enigmail:enigmail:*:*:*:*:*:*:*:*
CVE-2018-15586 https://nvd.nist.gov/vuln/detail/CVE-2018-15586
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-15586
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:R/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-15586
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 0.455
EPSS Score 0.00227
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T10:01:17.122122+00:00 NVD Importer Import https://nvd.nist.gov/vuln/detail/CVE-2018-15586 37.0.0