[NEW] [medium] Znuny: Multiple vulnerabilities allow information disclosure

A remote, anonymous or authenticated attacker can exploit multiple vulnerabilities in Znuny to disclose information.

CSIRTS triage

What: Multiple vulnerabilities allow remote attackers to disclose information.
Who is affected: Both anonymous and authenticated users of Znuny.
Urgency: Remediation is medium urgency as the vulnerabilities are unpatched but not actively exploited.
Action: Monitor for updates and apply patches when available.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Znuny

Get an email when a new Znuny advisory drops — max one per day, one-click unsubscribe.

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-66590.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all scored CVEs.
Low exploitation riskCVE-2026-83680.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-6659	coverage & exploitation status	NVD · CVE.org
CVE-2026-8368	coverage & exploitation status	NVD · CVE.org