Vulnerability · Published May 8, 2025 · Assigned by mitre
CVE-2025-26842
High 7.5
In plain English
A high-severity incorrect authorization in the znuny package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 69.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in Znuny through 7.1.3. If access to a ticket is not given, the content of S/MIME encrypted e-mail messages is visible to users with access to the CommunicationLog.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | znuny | no fix listed | DEBIAN-CVE-2025-26842 |
| Debian:13 | znuny | 6.5.13-1 | DEBIAN-CVE-2025-26842 |
| Debian:14 | znuny | 6.5.13-1 | DEBIAN-CVE-2025-26842 |
| Ubuntu:24.04:LTS | znuny | no fix listed | UBUNTU-CVE-2025-26842 |
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N