CVE-2004-0842
Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (application…
- 7.5HighCVSS base score
- 56.6%Exploitation in 30 daysEPSS · top 0.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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."
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Microsoft Internet Explorer 5.0.1 - Style Tag Comment Memory Corruption (Exploit-DB entry) (opens in a new tab)
EDB-ID 24328remote, windowspublished 8 Jul 2004Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 6 days later
· 6 days later
Published
- 20 years later
· 20 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 56.6% · top 0.9% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
17
- 20040728 Re: Crash IE with 11 bytes ;) (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- oval:org.mitre.oval:def:4169 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- MS04-038 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://www.securiteam.com/exploits/5NP042KF5A.html (opens in a new tab)x_refsource_MISCx_transferred
- VU#291304 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- oval:org.mitre.oval:def:2906 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20040723 Crash IE with 11 bytes ;) (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://www.ecqurity.com/adv/IEstyle.html (opens in a new tab)x_refsource_MISCx_transferred
- oval:org.mitre.oval:def:5592 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ie-popupshow-perform-actions(16675) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- TA04-293A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 20040728 Re: Crash IE with 11 bytes ;) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 12806 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- P-006 (opens in a new tab)third-party-advisorygovernment-resourcex_refsource_CIACx_transferred
- 10816 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- oval:org.mitre.oval:def:6579 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:3372 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2004-0840 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2004-0842)Record last updated .