CVE-2024-52875Known exploitationPublic exploitNetwork attack vector

Root command execution via unsanitized redirect header

Published Jan 31, 2025 · Updated Feb 12, 2025

HTTP response splitting in GFI Software Kerio Control 9.2.5 through 9.4.5 allows remote attackers to execute root commands via a crafted link. Three /nonauth/ endpoints decode the dest parameter into a Location header without removing LF characters, enabling injected headers and a reflected response body. Execution requires an authenticated administrator to open the link; injected JavaScript obtains the admin CSRF token and uploads a crafted upgrade image that runs as root.

CVSS severity8.8
High
EPSS probability29.56%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP response splitting in GFI Software Kerio Control 9.2.5 through 9.4.5 allows remote attackers to execute root commands via a crafted link. Three /nonauth/ endpoints decode the dest parameter into a Location header without removing LF characters, enabling injected headers and a reflected response body. Execution requires an authenticated administrator to open the link; injected JavaScript obtains the admin CSRF token and uploads a crafted upgrade image that runs as root.

The record

CVE
CVE-2024-52875
Published
Jan 31, 2025
Updated
Feb 12, 2025
Vendor
GFI Software
Product
Kerio Control
Classifications
CWE-113, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2025Exploitation reportedGreyNoise-observed exploitation attempts
  2. Jan 31, 2025CVE publishedPublication date reported by the CVE source.
  3. Feb 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.2.5 <=9.4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GFI Software · Kerio Controlversion=9.2.5 <=9.4.5

Published CVSS scores

8.8MITRECVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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