Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote…
Priority HIGH 66Published · 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
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (application crash from "memory corruption") via certain malformed Cascading Style Sheet (CSS) elements that trigger heap-based buffer overflows, as demonstrated using the "<STYLE>@;/*" string, possibly due to a missing comment terminator that may cause an invalid length to trigger a large memory copy operation, aka the "CSS Heap Memory Corruption Vulnerability."
Why it matters now
EPSS 0.56607 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avaya:ip600_media_servers:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:* | 6.0 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.0.1:*:*:*:*:*:*:* | 5.0.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp1:*:*:*:*:*:* | 5.0.1 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp2:*:*:*:*:*:* | 5.0.1 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp3:*:*:*:*:*:* | 5.0.1 sp3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp4:*:*:*:*:*:* | 5.0.1 sp4 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* | 5.5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.5:sp1:*:*:*:*:*:* | 5.5 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.5:sp2:*:*:*:*:*:* | 5.5 sp2 | Vulnerable | Microsoft |
- cpe:2.3:a:avaya:ip600_media_servers:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:* Versions 6.0 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.0.1:*:*:*:*:*:*:* Versions 5.0.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp1:*:*:*:*:*:* Versions 5.0.1 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp2:*:*:*:*:*:* Versions 5.0.1 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp3:*:*:*:*:*:* Versions 5.0.1 sp3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp4:*:*:*:*:*:* Versions 5.0.1 sp4 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.5:sp1:*:*:*:*:*:* Versions 5.5 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.5:sp2:*:*:*:*:*:* Versions 5.5 sp2 Vulnerable ·Microsoft
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Microsoft |
| cpe:2.3:h:avaya:definity_one_media_server:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:h:avaya:s3400:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:h:avaya:s8100:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:o:avaya:modular_messaging_message_storage_server:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | Avaya |
| cpe:2.3:o:avaya:modular_messaging_message_storage_server:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Avaya |
- cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Microsoft
- cpe:2.3:h:avaya:definity_one_media_server:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:h:avaya:s3400:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:h:avaya:s8100:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:o:avaya:modular_messaging_message_storage_server:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·Avaya
- cpe:2.3:o:avaya:modular_messaging_message_storage_server:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Avaya
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0842
- 2026-10-03 Alias added: GHSA-g4xq-83hp-jc9q
References
Other 9
- 20040728 Re: Crash IE with 11 bytes ;)
- oval:org.mitre.oval:def:4169
- http://www.securiteam.com/exploits/5NP042KF5A.html
- oval:org.mitre.oval:def:2906
- 20040723 Crash IE with 11 bytes ;)
- oval:org.mitre.oval:def:5592
- 20040728 Re: Crash IE with 11 bytes ;)
- oval:org.mitre.oval:def:6579
- oval:org.mitre.oval:def:3372
Sources
- CVE-2004-0842 · CVE Program
- CVE-2004-0842 · NVD
- FIRST EPSS
- GHSA-g4xq-83hp-jc9q · 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