Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2023-26433 Details

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html	CVE	Third Party AdvisoryVDB Entry
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json	CVE
http://seclists.org/fulldisclosure/2023/Jun/8	CVE	Mailing ListThird Party Advisory
https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf	CVE	Release Notes
http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html	[email protected]	Third Party AdvisoryVDB Entry
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json	[email protected]
http://seclists.org/fulldisclosure/2023/Jun/8	[email protected]	Mailing ListThird Party Advisory
https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf	[email protected]	Release Notes

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]
CWE-400	Uncontrolled Resource Consumption	[email protected]

Affected Products

Product	Versions
open-xchange open-xchange appsuite backend	< 7.10.6 >= 8.0.0, < 8.11.0 7.10.6 7.10.6 revision_39
CPE cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:::::::: cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:::::::* cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:revision_39:::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 12, 2024	CVE Modified	[email protected]
Jul 6, 2023	Initial Analysis	[email protected]
Jun 22, 2023	CVE Modified	[email protected]
Jun 22, 2023	CVE Modified	[email protected]