CVE-2026-74238: nebula 0 through 1.2.0

CVE-2026-74238. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00483 (percentile 0.40693), scored 22-Oct-2026.

Affected technology

nebula · 0 through 1.2.0
tier4

Description’s affected range: through 1.2.0

Component: Not specified by the source
Function: that

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Unauthenticated remote attackers can cause the decoder to read past the end of a received UDP buffer into adjacent heap memory by sending a short UDP datagram. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and availability impact as none; integrity impact as high.

Published 23-Oct-2026 16:20 UTC

CWE: CWE-125
CCR priority: 30.1 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · Vendor/CNA
EPSS: 0.00483 · percentile 0.40693 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-23 16:20:36.797830+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-74238.html