A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with… (CVE-2026-18145)
CVE-2026-18145 is a high-severity stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS. It allows an authenticated administrator to crash the service or potentially execute arbitrary code by sending a specially crafted management request. The vulnerability affects multiple versions of Fireware OS prior to specific patch levels. No known exploits are reported in the wild. The vulnerability requires administrator privileges and no user interaction. The vendor has not provided explicit patch information in the input data.
AI Analysis
Technical Summary
CVE-2026-18145 describes a stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS. The flaw requires the attacker to have administrator privileges and allows them to send a crafted management request that can crash the service or possibly execute arbitrary code. No patch or remediation details are provided in the available data. The vulnerability is classified under CWE-121 (stack-based buffer overflow).
Potential Impact
An attacker with administrator privileges can exploit this vulnerability to cause a denial of service by crashing the spamBlocker service or potentially execute arbitrary code, which could lead to full compromise of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrative access to trusted personnel and monitor for unusual activity related to the spamBlocker service.
A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with… (CVE-2026-18145)
Description
CVE-2026-18145 is a high-severity stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS. It allows an authenticated administrator to crash the service or potentially execute arbitrary code by sending a specially crafted management request. The vulnerability affects multiple versions of Fireware OS prior to specific patch levels. No known exploits are reported in the wild. The vulnerability requires administrator privileges and no user interaction. The vendor has not provided explicit patch information in the input data.
CVSS v4.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18145 describes a stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS. The flaw requires the attacker to have administrator privileges and allows them to send a crafted management request that can crash the service or possibly execute arbitrary code. No patch or remediation details are provided in the available data. The vulnerability is classified under CWE-121 (stack-based buffer overflow).
Potential Impact
An attacker with administrator privileges can exploit this vulnerability to cause a denial of service by crashing the spamBlocker service or potentially execute arbitrary code, which could lead to full compromise of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrative access to trusted personnel and monitor for unusual activity related to the spamBlocker service.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6g2x-6j83-r28p
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-18145"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abc5d3f680226ef6899ba44
Added to database: 09/30/2026, 00:52:15 UTC
Last enriched: 09/30/2026, 01:21:12 UTC
Last updated: 09/30/2026, 03:03:32 UTC
Views: 5
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