CVE-2026-101017
Trusted Domain Project OpenDMARC opendmarc_policy.c strcasecmp exceptional condition
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 28, 2026
- Updated
- Sep 28, 2026
- Reserved
- Sep 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 6.5 Medium | 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 | VulDB |
| 3.0 | 6.5 Medium | 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 | VulDB |
| 2.0 | 6.4 Medium | AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
- CWE-755 Handling of Exceptional Conditions
Affected Products
| Product | Versions |
|---|---|
OpenDMARCTrusted Domain Project |
|
References
- VDB-410887 | Trusted Domain Project OpenDMARC opendmarc_policy.c strcasecmp exceptional conditionvdb-entrytechnical-description
- VDB-410887 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-101017 | CVE Analysis and Reportthird-party-advisory
- Submit #918247 | The Trusted Domain Project OpenDMARC 1.4.2 Improper Authenticationthird-party-advisory
- https://xuyongzhe-vt.github.io/share/opendmarc-subdomain-walk-abort.htmlexploit
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