CVE-2025-7451: Hgiga iSherlock-maillog-4.5 · OS Command Injection
Affects Hgiga iSherlock-maillog-4.5Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 11:42 UTC
- EPSS
- 1.4% chance of exploitation in 30 days – higher than 72% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Hgiga iSherlock-maillog-4.5 | Affected
| Fixed in– |
AI-suggested
Immediate mitigation steps include isolating affected iSherlock instances from external networks to prevent remote exploitation. Organizations should monitor network traffic and system logs for unusual command execution patterns indicative of exploitation attempts. Since no patches are currently available, applying virtual patching via Web Application Firewalls (WAFs) or Intrusion Prevention Systems (IPS) with custom rules to detect and block OS command injection payloads is recommended. Restricting the privileges of the iSherlock service account to the minimum necessary can limit the impact of a successful exploit. Organizations should also implement network segmentation to contain potential breaches. Regular backups of critical data and system snapshots should be maintained to enable recovery. Once Hgiga releases an official patch, organizations must prioritize immediate deployment. Additionally, conducting a thorough security audit of all systems running iSherlock and related infrastructure is advised to identify any signs of compromise.
Description
The iSherlock developed by Hgiga has an OS Command Injection vulnerability, allowing unauthenticated remote attackers to inject arbitrary OS commands and execute them on the server. This vulnerability has already been exploited. Please update immediately.