CVE-2020-12108

Exp

/options/mailman in GNU Mailman before 2.1.31 allows Arbitrary Content Injection.

Published: 2020-05-06 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12108 is rated High Exploit Risk (70.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.70%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-12108

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-12108

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-23 2.59% 2.70% +0.11%
2 2026-06-15 7.99% 2.59% -5.40%
3 2026-01-17 — 7.99% —

Full EPSS history (30 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12108

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2020-12108

OS Trackers for CVE-2020-12108

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2020-12108
suse medium CVE-2020-12108 severity moderate: SUSE including 7 source package names (mailman-2.1.15-9.6.23.1, mailman-2.1.17-3.20.1, …), 28 product×package rows across 28 product lines (HPE Helion OpenStack 8, SUSE Enterprise Storage 5, … (28 product lines)): Fixed 28. https://www.suse.com/security/cve/CVE-2020-12108/
ubuntu medium CVE-2020-12108 medium priority: Ubuntu including 1 source packages (mailman), 10 status rows across 10 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial): DNE 5, released 3, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2020-12108

Affected software / configurations for CVE-2020-12108

Vendor Product Version Raw CPE
gnu mailman < 2.1.31 cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
opensuse backports_sle 15.0 cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
opensuse backports_sle 15.0 cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
opensuse leap 15.2 cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

References for CVE-2020-12108

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00036.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00003.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00047.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00063.html Mailing List Third Party Advisory
https://bugs.launchpad.net/mailman/+bug/1873722 Exploit Issue Tracking Patch Third Party Advisory
https://code.launchpad.net/mailman Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00007.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00007.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/74EQIVFB34Q4UYAQLCUWG55YLKAUWCHD/
https://mail.python.org/pipermail/mailman-announce/ Release Notes Third Party Advisory
https://usn.ubuntu.com/4354-1/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4991 Third Party Advisory
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