Risk Letters

Exploited vulnerability

CVE-2025-67911

TLP:CLEAR

Deserialization of Untrusted Data

Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through <= 4.11.

Facts

  • Vendor: Tribulant Software
  • Product: Newsletters
  • EPSS (probability of exploitation within 30 days): 0.5 %
  • First known exploitation: 13 October 2026
  • First seen by Risk Letters: 13 October 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD