{"id":"CVE-2004-0842","aliases":["EUVD-2004-0840","GHSA-g4xq-83hp-jc9q"],"status":"published","title":"Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to...","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 \"\u003cSTYLE\u003e@;/*\" 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.\"","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.56607,"percentile":0.99067,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2004-09-14T04:00:00Z","modified":"2026-06-16T22:06:30Z","exploits":[{"source":"exploitdb","id":"EDB-24328","title":"Microsoft Internet Explorer 5.0.1 - Style Tag Comment Memory Corruption","type":"remote","platform":"windows","date":"2004-07-08","verified":true,"url":"https://www.exploit-db.com/exploits/24328"}],"products":[{"vendor":"avaya","product":"definity_one_media_server"},{"vendor":"avaya","product":"ip600_media_servers"},{"vendor":"avaya","product":"modular_messaging_message_storage_server"},{"vendor":"avaya","product":"s3400"},{"vendor":"avaya","product":"s8100"},{"vendor":"microsoft","product":"ie"},{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"http://marc.info/?l=full-disclosure\u0026m=109102919426844\u0026w=2","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4169","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-038","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://www.securiteam.com/exploits/5NP042KF5A.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/291304","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2906","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://marc.info/?l=full-disclosure\u0026m=109060455614702\u0026w=2","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://www.ecqurity.com/adv/IEstyle.html","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5592","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16675","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA04-293A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource"]},{"url":"http://marc.info/?l=bugtraq\u0026m=109107496214572\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://secunia.com/advisories/12806","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.ciac.org/ciac/bulletins/p-006.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/10816","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6579","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3372","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0842"},{"url":"https://github.com/advisories/GHSA-g4xq-83hp-jc9q"}],"sources":{"cve":[{"id":"CVE-2004-0842","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 \"\u003cSTYLE\u003e@;/*\" 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.\"","status":"published","published":"2004-09-14T04:00:00Z","modified":"2024-08-08T00:31:47.861Z","updated_at":"2026-11-02T14:34:54.758165Z"}],"euvd":[{"id":"EUVD-2004-0840","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 \"\u003cSTYLE\u003e@;/*\" 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.\"","status":"published","published":"2004-09-14T04:00:00Z","modified":"2024-08-08T00:31:47Z","updated_at":"2026-11-03T01:15:17.778038Z"}],"ghsa":[{"id":"GHSA-g4xq-83hp-jc9q","title":"Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to...","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 \"\u003cSTYLE\u003e@;/*\" 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.\"","status":"published","published":"2022-04-29T02:58:28Z","modified":"2023-01-30T05:03:04Z","updated_at":"2026-11-02T14:46:45.547616Z"}],"nvd":[{"id":"CVE-2004-0842","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 \"\u003cSTYLE\u003e@;/*\" 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.\"","status":"published","published":"2004-12-23T05:00:00Z","modified":"2026-06-16T22:06:30.157Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:51.985436Z"}]}}