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CVE-2020-12272

16
FAUCET Score

CVE-2020-12272 is a medium-severity vulnerability affecting OpenDMARC versions through 1.3.2 and 1.4.x, allowing attackers to inject false DMARC authentication results due to incorrect parsing of SPF/DKIM data. This network-exploitable flaw has a CVSS score of 5.3, indicating a low impact on integrity by enabling spoofed email origins. While no public exploits, Metasploit modules, or Nuclei templates are available, and there is minimal community discussion, organizations using affected OpenDMARC versions should consider patching to prevent potential email spoofing attacks.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, <= 1.3.2CPE matchmatch criteria
cpe:2.3:a:trusteddomain:opendmarc:*:*:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:trusteddomain:opendmarc:1.4.0:-:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:trusteddomain:opendmarc:1.4.0:beta0:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:trusteddomain:opendmarc:1.4.0:beta1:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.14%
Probability of exploitation in next 30 days
EPSS Percentile
80.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0214 is in the 69th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.debian.org / debian-lts-announce/2023/08/msg00035.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5
sourceforge.net / p/opendmarc/tickets/237
ExploitThird Party Advisory
usenix.org / system/files/sec20fall_chen-jianjun_prepub_0.pdf
Technical DescriptionThird Party Advisory