CVE-2026-1678

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...

CVE-2026-1678

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...

CVE-2026-1678

CVE-2026-1678 affects Zephyr’s DNS name parser. The function dns_unpack_name() caches the buffer tailroom and reuses it when appending DNS labels; as the buffer grows, the cached size can become incorrect, allowing the final null terminator to be written past the buffer. With assertions disabled ...

EUVD-2026-9792

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...