{"id":"CVE-2010-0806","kind":"vulnerability","aliases":["CVE-2010-0806"],"related":[],"title":"Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6…","description":"Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.\n\nCISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","summary":"Internet Explorer has a use-after-free bug: it can access a pointer to an object after that object was deleted. A remote attacker who gets a user to load a crafted page can run arbitrary code in the browser's context.","severity":"critical","cvss":9.3,"epss":null,"exploited":true,"exploited_at":"2026-05-20T00:00:00+00:00","products":[{"name":"Microsoft Internet Explorer","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 5.01","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 6","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 8","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 7","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","internet-explorer","other","windows"],"not_affected_if":["no-ie-installed"],"how_to_check":"Check the installed Internet Explorer version (e.g. Get-Item 'C:\\Program Files\\Internet Explorer\\iexplore.exe' | Select-Object VersionInfo) and whether it is an end-of-life version.","fix":"Discontinue use of Internet Explorer and move users to a supported browser; CISA says to apply vendor mitigations or discontinue use if none are available.","status":"open","published_at":"2010-03-10T22:30:01+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:34:08+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T20:34:08Z","model":"claude-haiku-5-5","output":{"fix":"Discontinue use of Internet Explorer and move users to a supported browser; CISA says to apply vendor mitigations or discontinue use if none are available.\nunknown","summary":"Internet Explorer has a use-after-free bug: it can access a pointer to an object after that object was deleted. A remote attacker who gets a user to load a crafted page can run arbitrary code in the browser's context.","category":"other","who_cares":["internet-explorer","windows"],"confidence":0.6,"analyst_note":"Confirm the affected and fixed IE versions and the vendor advisory (MS10-018 era) from the Microsoft bulletin; the sources give no version data.","how_to_check":"Check the installed Internet Explorer version (e.g. Get-Item 'C:\\Program Files\\Internet Explorer\\iexplore.exe' | Select-Object VersionInfo) and whether it is an end-of-life version.\nunknown","needs_analyst":true,"not_affected_if":["no-ie-installed"],"severity_if_unknown":"high"},"cost_usd":0.000392,"input_tokens":2129,"output_tokens":359,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':155C '-0806':21A,24A '-2010':20A,23A '22':154C '6':17A,18A 'access':57B,111C 'action':145C 'aka':11A 'allow':101C 'and/or':132C 'appli':146C 'applic':152C 'arbitrari':82B,106C 'attack':70B,103C 'bod':153C 'browser':86B 'bug':54B 'cisa':143C 'cloud':158C 'code':83B,107C 'compon':10A 'contain':92C 'context':88B 'could':100C,125C 'craft':78B 'cve':19A,22A 'delet':67B,118C 'discontinu':140C,161C 'end':128C,134C 'end-of-lif':127C 'end-of-servic':133C 'eo':137C 'eol':131C 'execut':105C 'exploit':40B 'explor':16A,43B,47B,91C 'explorer':27A,30A,33A,36A,39A 'follow':151C 'free':4A,53B,97C 'get':72B 'guidanc':156C 'iepeers.dll':12A 'impact':123C 'instruct':150C 'internet':15A,26A,29A,32A,35A,38A,42B,46B,90C 'internet-explor':41B 'invalid':114C 'involv':110C 'life':130C 'load':76B 'microsoft':14A,25A,28A,31A,34A,37A,89C 'mitig':147C,167C 'object':9A,62B,65B,121C 'page':79B 'peer':8A 'per':148C 'pointer':59B,115C 'product':124C,141C,165C 'remot':69B,102C 'requir':144C 'run':81B 'servic':136C,159C 'unavail':169C 'use':2A,51B,95C,162C 'use-after-fre':1A,50B,94C 'user':74B,138C 'util':142C 'vector':109C 'vendor':149C 'via':108C 'vulner':5A,98C 'window':45B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2010-03-10T22:30:01+00:00","kev":{"dateAdded":"2026-05-20","dueDate":"2026-06-03","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2010-0806","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2010-0806","severity":null,"published_at":"2026-05-20T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T10:39:04+00:00","note":null},{"source":"nvd","external_id":"CVE-2010-0806","url":"https://nvd.nist.gov/vuln/detail/CVE-2010-0806","severity":null,"published_at":"2010-03-10T22:30:01+00:00","modified_at":"2026-06-16T23:16:52+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}