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CVE-2026-42859

UNKNOWN · CVSS N/A EPSS %0.20 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-05-11T18:16:36.400 · Çekilme zamanı: 2026-06-09T06:00:35.109515+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

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CVE
CVE-2026-42859
Severity
UNKNOWN
CVSS
N/A
EPSS
%0.20

Orijinal NVD Açıklaması

Neat VNC is a VNC server library. Prior to 0.9.6, a pre-authentication stack buffer overflow exists in neatvnc in the RSA-AES security type handler. An unauthenticated remote attacker who can reach the VNC listening socket can send a crafted security type 5 (RSA-AES) or security type 129 (RSA-AES-256) handshake with an oversized client RSA public key, causing rsa_aes_send_challenge in src/auth/rsa-aes.c to overflow a 1024-byte on-stack buffer when encrypting the server challenge. This results in at least a denial of service via server crash. This vulnerability is fixed in 0.9.6.