Microsoft Internet Explorer 6 SP1; Internet Explorer 6 for Windows XP SP2 and SP3 and Server 2003 SP2; and Internet Explorer 7 and 8 for Windows XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 do not properly handle attempts to access deleted objects in memory, which allows remote attackers to execute arbitrary code via a crafted HTML document that triggers memory corruption, aka "Memory Corruption Vulnerability."
CVE-2009-1917
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 9.3 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 27.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 9.3HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 9.3(low)
- EG Risk
- 62(Track)EG Risk 62/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity93% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 27%
- EPSS %ILE
- 98%
- KEV
- Not listed
Published
July 29, 2009
Last Modified
April 23, 2026
References (14)
- secure@microsofthttp://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=953693
- secure@microsofthttp://www.securityfocus.com/bid/35831
- secure@microsofthttp://www.securitytracker.com/id?1022611
- secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA09-195A.html
- secure@microsofthttp://www.vupen.com/english/advisories/2009/2033
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-034
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6072
- af854a3a-2127-422b-91ae-364da2661108http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=953693
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/35831
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1022611
- af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA09-195A.html
- af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2009/2033
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-034
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6072
Data Freshness Timeline
(refreshed 2× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-27 14:19 UTCEPSS rescore
- 2026-08-25 13:43 UTCEPSS rescore
- 2026-08-19 16:58 UTCEPSS rescore
- 2026-08-15 01:24 UTCEPSS rescore
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- 2026-07-30 16:22 UTCEPSS rescore
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- 2026-07-26 13:38 UTCEG score recompute▲ 9.30
- 2026-07-25 14:12 UTCEPSS rescore
- 2026-07-24 14:12 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 00:59 UTCEG score recompute
- 2026-07-23 00:37 UTCEG score recompute
- 2026-07-23 00:03 UTCEG score recompute
- 2026-07-22 21:42 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescore
- 2026-07-21 15:20 UTCEPSS rescore
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- 2026-07-18 09:59 UTCEPSS rescore
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- 2026-07-13 06:07 UTCEPSS rescore
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- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
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- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-30 16:00 UTCEG score recompute
- 2026-05-30 16:00 UTCGHSA enrichment
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-22 21:15 UTCEPSS rescore
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- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Frequently asked(4)
What is CVE-2009-1917?
When was CVE-2009-1917 disclosed?
Is CVE-2009-1917 actively exploited?
How do I remediate CVE-2009-1917?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2009-1917
Is Your Infrastructure Affected by CVE-2009-1917?
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