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CVE-2022-48521

19
FAUCET Score

CVE-2022-48521 describes a vulnerability in OpenDKIM versions through 2.10.3 and 2.11.x through 2.11.0-Beta2. This flaw allows a remote attacker to bypass DKIM signature validation by crafting an email with a fake sender address, leading to programs incorrectly trusting messages as having a valid DKIM signature when they do not. Rated as Medium severity (CVSS 5.3), the vulnerability has a low impact on integrity and requires no user interaction or privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.10.3CPE matchmatch criteria
cpe:2.3:a:opendkim:opendkim:*:*:*:*:*:*:*:*
2.11.0CPE matchmatch criteria
cpe:2.3:a:opendkim:opendkim:2.11.0:beta0:*:*:*:*:*:*
2.11.0CPE matchmatch criteria
cpe:2.3:a:opendkim:opendkim:2.11.0:beta1:*:*:*:*:*:*
2.11.0CPE matchmatch criteria
cpe:2.3:a:opendkim:opendkim:2.11.0:beta2:*:*:*:*:*:*

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
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 32nd percentile among its peer group of 23,723 CVEs.

Social Chatter

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

github.com / trusteddomainproject/OpenDKIM/issues/148
Issue Tracking
lists.debian.org / debian-lts-announce/2023/12/msg00002.html