HTTP response splitting in GFI Software Kerio Control
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
An issue was discovered in GFI Kerio Control 9.2.5 through 9.4.5. The dest GET parameter passed to the /nonauth/addCertException.cs and /nonauth/guestConfirm.cs and /nonauth/expiration.cs pages is not properly sanitized before being used to generate a Location HTTP header in a 302 HTTP response. This can be exploited to perform Open Redirect or HTTP Response Splitting attacks, which in turn lead to Reflected Cross-Site Scripting (XSS). Remote command execution can be achieved by leveraging the upgrade feature in the admin interface.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GFI Software | Kerio Control | 9.2.5 – 9.4.5 | — | No fix listed | CNA |
- Kerio Control VendorGFI Software Affected 9.2.5 – 9.4.5 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gfi:kerio_control:*:*:*:*:*:*:*:* | 9.2.5 – 9.4.5 | Vulnerable | GFI Software |
- cpe:2.3:a:gfi:kerio_control:*:*:*:*:*:*:*:* Versions 9.2.5 – 9.4.5 Vulnerable ·GFI Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-52875
- 2026-10-03 Alias added: GHSA-wwwq-jmfm-4f5c
References
More GFI Software Kerio Control vulnerabilities
- TI-2025-24238 GFI Kerio Control GFIAgent Missing Authentication on Administrative Interfaces CVSS 4.0CRITICAL 10.0
- TI-2025-24239 GFI Kerio Control Unsigned System Image Upload Root Code Execution CVSS 4.0CRITICAL 9.4
- TI-2025-24237 GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding CVSS 4.0CRITICAL 9.5
- TI-2019-12344 A DOM based XSS in GFI Kerio Control v9.3.0 allows embedding of malicious code and… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2024-52875 · CVE Program
- CVE-2024-52875 · NVD
- FIRST EPSS
- GHSA-wwwq-jmfm-4f5c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences