A vulnerability was found in Trusted Domain Project OpenDMARC up to 1.4.2. This vulnerability affects the function strcasecmp in the library libopendmarc/opendmarc_policy.c. The manipulation results in handling of exceptional conditions. The attack can be executed remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Trusted Domain Project OpenDMARC affected
Version Status Constraints
1.4.0 affected —
1.4.1 affected —
1.4.2 affected —

No data.

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Project Subscriptions

Vendors Products
Trusted Domain Project Subscribe
Opendmarc Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://vuldb.com/cve/CVE-2026-101017 cve-icon cve-icon
https://vuldb.com/submit/918247 cve-icon cve-icon
https://vuldb.com/vuln/410887 cve-icon cve-icon
https://vuldb.com/vuln/410887/cti cve-icon cve-icon
https://xuyongzhe-vt.github.io/share/opendmarc-subdomain-walk-abort.html cve-icon cve-icon
History

Mon, 28 Sep 2026 09:15:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in Trusted Domain Project OpenDMARC up to 1.4.2. This vulnerability affects the function strcasecmp in the library libopendmarc/opendmarc_policy.c. The manipulation results in handling of exceptional conditions. The attack can be executed remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title Trusted Domain Project OpenDMARC opendmarc_policy.c strcasecmp exceptional condition
First Time appeared Trusted Domain Project
Trusted Domain Project opendmarc
Weaknesses CWE-755
CPEs cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*
Vendors & Products Trusted Domain Project
Trusted Domain Project opendmarc
References
Metrics cvssV2_0

{'score': 6.4, 'vector': 'AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 6.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-28T09:00:10.541Z

Reserved: 2026-09-27T11:33:10.549Z

Link: CVE-2026-101017

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-28T09:17:05.503

Modified: 2026-09-28T09:17:05.503

Link: CVE-2026-101017

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses