MEDIUMCVSS v3.1 4.3Vulnerability
CVE-2026-93009
A flaw was found in dnsmasq. The DHCPv6 client hostname parser can read one byte past the end of a crafted FQDN option because it checks the next label length before confirming the pointer is still inside the option. An attacker on the local network can trigger this with a single DHCPv6 packet. The extra byte is not returned to the client or logged, and no crash has been demonstrated.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-29T15:51:37.835109+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 4.3
- Retrieved at
- 2026-10-29T15:52:27+00:00
- Score
- 4.3
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-93009
- Cvss vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- First seen by Signal
- 2026-10-29T15:52:27+00:00
- Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Published at
- 2026-10-29T14:18:00.367
- Last modified
- 2026-10-29T14:18:00.480
Related Entities (1)
HAS_WEAKNESS (1)
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