CVE-2023-26433 - CVE House
Back to Database
Status published Medium CVE-2023-26433

When adding an external mail account, processing of IMAP "capabilities"...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-26433

Credits & Attribution

No credits recorded in the NVD database.

References

More from OX Software GmbH

View All →
CVE-2023-29047
Imageconverter API endpoints provided methods that were not sufficiently validating...
Medium 5.3
CVE-2023-29046
Connections to external data sources, like e-mail autoconfiguration, were not...
Medium 4.3
CVE-2023-29045
Documents operations, in this case "drawing", could be manipulated to...
Medium 5.4
CVE-2023-29044
Documents operations could be manipulated to contain invalid data types,...
Medium 5.4
CVE-2023-29043
Presentations may contain references to images, which are user-controlled, and...
Medium 6.1

Affected Vendor

OX Software GmbH

View all reports →

Affected Software

OX App Suite
Vulnerable Versions:
0

Timeline

Official Publish: June 20th, 2023
Last Modified: August 2nd, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-400

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1498 Network Denial of Service
Impact