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HIGH · 8.2

CVE-2025-1673

A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.

Vulnerability Description

A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.

CVSS Score

8.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH

Affected Products

VendorProductVersions
ZephyrprojectZephyr<= 4.0

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2025-1673?

CVE-2025-1673 is a vulnerability with a CVSS score of 8.2 (HIGH). A malicious or malformed DNS packet without a payload can cause an out-of-bounds read, resulting in a crash (denial of service) or an incorrect computation.

How severe is CVE-2025-1673?

CVE-2025-1673 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-1673?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.