A bug in the HTML parser in a certain Microsoft HTML library, as used in various third…
Priority MEDIUM 48Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
A bug in the HTML parser in a certain Microsoft HTML library, as used in various third party products, may allow remote attackers to cause a denial of service via certain strings, as reported in GFI MailEssentials for Exchange 9 and 10, and GFI MailSecurity for Exchange 8, which causes emails to remain in IIS or Exchange mail queues.
Why it matters now
EPSS 0.0247 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gfi:mailessentials:9.0:*:exchange_smtp:*:*:*:*:* | 9.0 | Vulnerable | GFI Software |
| cpe:2.3:a:gfi:mailessentials:10.0:*:exchange_smtp:*:*:*:*:* | 10.0 | Vulnerable | GFI Software |
| cpe:2.3:a:gfi:mailessentials:10.1:*:exchange_smtp:*:*:*:*:* | 10.1 | Vulnerable | GFI Software |
| cpe:2.3:a:gfi:mailsecurity:8.0:*:exchange_smtp:*:*:*:*:* | 8.0 | Vulnerable | GFI Software |
- cpe:2.3:a:gfi:mailessentials:9.0:*:exchange_smtp:*:*:*:*:* Versions 9.0 Vulnerable ·GFI Software
- cpe:2.3:a:gfi:mailessentials:10.0:*:exchange_smtp:*:*:*:*:* Versions 10.0 Vulnerable ·GFI Software
- cpe:2.3:a:gfi:mailessentials:10.1:*:exchange_smtp:*:*:*:*:* Versions 10.1 Vulnerable ·GFI Software
- cpe:2.3:a:gfi:mailsecurity:8.0:*:exchange_smtp:*:*:*:*:* Versions 8.0 Vulnerable ·GFI Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-1312
- 2026-10-03 Alias added: GHSA-jm4q-cpwg-j7g7
References
More GFI Software Mailessentials vulnerabilities
- TI-2025-24524 GFI MailEssentials < 21.8 MultiNode Insecure Deserialization CVSS 3.1HIGH 8.8
- TI-2025-24522 GFI MailEssentials < 21.8 Local Privilege Escalation CVSS 3.1HIGH 7.8
- TI-2025-24523 GFI MailEssentials < 21.8 XXE Arbitrary File Read CVSS 3.1MEDIUM 6.5
- TI-2026-19022 GFI MailEssentials AI < 22.4 ListServer.IsPathExist() Absolute Directory Traversal to File Enumeration CVSS 4.0MEDIUM 5.3
- TI-2026-19021 GFI MailEssentials AI < 22.4 ListServer.IsDBExist() Absolute Directory Traversal to File Enumeration CVSS 4.0MEDIUM 5.3
- TI-2026-19020 GFI MailEssentials AI < 22.4 General Settings Local Domains Domain Description Stored XSS CVSS 4.0MEDIUM 5.1
Sources
- CVE-2004-1312 · CVE Program
- CVE-2004-1312 · NVD
- FIRST EPSS
- GHSA-jm4q-cpwg-j7g7 · 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