CVE-2025-1673

Out of bounds read when calling crc16_ansi and strlen in dns_validate_msg

Published Feb 25, 2025 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-5069 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Zephyrproject
Zephyrproject zephyr
CPEs cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*
Vendors & Products Zephyrproject
Zephyrproject zephyr
Type Values Removed Values Added
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.
Title Out of bounds read when calling crc16_ansi and strlen in dns_validate_msg
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
zephyr
Published
Updated
Oct 13, 2026, 7:58 PM
Reserved
Feb 25, 2025, 6:01 AM
Status
Analyzed
Published
Feb 25, 2025, 7:15 AM
Modified
Oct 13, 2026, 8:17 PM