VDB-223162 · CVE-2023-25267 · EUVD-2023-29229

GFI Kerio Connect 9.4.1 Patch 1 2FASetup webmail/api/jsonrpc primaryEMailAddress stack-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in GFI Kerio Connect 9.4.1 Patch 1. Impacted is an unknown function of the file webmail/api/jsonrpc of the component 2FASetup. Executing a manipulation of the argument primaryEMailAddress can lead to stack-based overflow. This vulnerability is tracked as CVE-2023-25267. No exploit exists. You should upgrade the affected component. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability was found in GFI Kerio Connect 9.4.1 Patch 1. It has been declared as critical. This vulnerability affects some unknown functionality of the file webmail/api/jsonrpc of the component 2FASetup. The manipulation of the argument primaryEMailAddress with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in GFI Kerio Connect 9.4.1 patch 1 (fixed in 10.0.0). There is a stack-based Buffer Overflow in the webmail component's 2FASetup function via an authenticated request with a long primaryEMailAddress field to the webmail/api/jsonrpc URI.

The weakness was disclosed 03/16/2023. The advisory is available at support.kerioconnect.gfi.com. This vulnerability was named CVE-2023-25267 since 02/06/2023. Technical details are known, but there is no available exploit.

Upgrading to version 10.0.0 eliminates this vulnerability. The upgrade is hosted for download at support.kerioconnect.gfi.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-29229). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Kerio Connect

Version

9.4.1 Patch 1

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kerio Connect 10.0.0

Timelineinfo

02/06/2023 🔍
03/16/2023 +38 days 🔍
03/16/2023 +0 days 🔍
10/30/2025 +959 days 🔍

Sourcesinfo

Advisory: support.kerioconnect.gfi.com
Status: Confirmed

CVE: CVE-2023-25267 (🔍)
GCVE (CVE): GCVE-0-2023-25267
GCVE (VulDB): GCVE-100-223162
EUVD: 🔍

Entryinfo

Created: 03/16/2023 07:46 AM
Updated: 10/30/2025 06:42 AM
Changes: 03/16/2023 07:46 AM (43), 04/08/2023 12:52 PM (11), 10/30/2025 06:42 AM (16)
Complete: 🔍
Cache ID: 244:ECE:40