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Vulnerability details: VCID-w3f9-2bds-aaah
Vulnerability ID VCID-w3f9-2bds-aaah
Aliases CVE-2020-28019
Summary Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-665 Improper Initialization
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-28019.html
epss 0.00815 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00815 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.00818 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
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epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.06183 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
epss 0.29675 https://api.first.org/data/v1/epss?cve=CVE-2020-28019
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28007
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28008
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28009
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28010
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28011
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28012
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28013
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28014
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28015
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28017
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28019
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28021
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28022
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28023
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28024
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28025
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28026
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-28019
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-28019
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-28019
archlinux High https://security.archlinux.org/AVG-1911
generic_textual Medium https://ubuntu.com/security/notices/USN-4934-1
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-28019.html
https://api.first.org/data/v1/epss?cve=CVE-2020-28019
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28007
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28008
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28009
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28010
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28011
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28012
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28013
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28014
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28015
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28017
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28019
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28021
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28022
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28023
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28024
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28025
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28026
https://ubuntu.com/security/notices/USN-4934-1
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28019-BDATA.txt
AVG-1911 https://security.archlinux.org/AVG-1911
cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
CVE-2020-28019 https://nvd.nist.gov/vuln/detail/CVE-2020-28019
GLSA-202105-01 https://security.gentoo.org/glsa/202105-01
USN-4934-1 https://usn.ubuntu.com/4934-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-28019
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-2020-28019
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://nvd.nist.gov/vuln/detail/CVE-2020-28019
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 0.73247
EPSS Score 0.00815
Published At June 25, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.