🛡️ CVE-2023-26432
🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-400 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue SMTP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted SMTP server response to reasonable length/size. No publicly available exploits are known.

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE CWE-400
Public Exploit ✅ No
Source NVD
Published 2023-06-20
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
open-xchange-appsuite-backend — —

References

Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Jun/8
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Jun/8

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