Medium severity4.3NVD Advisory· Published Jun 20, 2023· Updated Jun 17, 2026
CVE-2023-26433
CVE-2023-26433
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:*:*:*:*:*:*:*+ 2 more
- 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:*:*:*:*:*:*
- cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:*range: <7.10.6
- Range: 0
Patches
Vulnerability mechanics
References
4- packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.htmlnvdThird Party AdvisoryVDB Entry
- seclists.org/fulldisclosure/2023/Jun/8nvdMailing ListThird Party Advisory
- software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdfnvdRelease Notes
- documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.jsonnvd
News mentions
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