{"id":"CVE-2024-26169","kind":"vulnerability","aliases":["CVE-2024-26169"],"related":[],"title":"Windows Error Reporting Service Elevation of Privilege Vulnerability","description":"Microsoft Windows Error Reporting Service contains an improper privilege management vulnerability that allows a local attacker with user permissions to gain SYSTEM privileges.\n\nCISA required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.","summary":"A flaw in the Windows Error Reporting Service lets a local user with ordinary permissions gain SYSTEM privileges. Attackers have used it in real attacks, and CISA lists it as known exploited with ransomware tags.","severity":"high","cvss":7.8,"epss":null,"exploited":true,"exploited_at":"2024-06-13T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 10 1507","fixed":["10.0.10240.20526"],"affected":"< 10.0.10240.20526","ecosystem":"vendor"},{"name":"microsoft windows 10 1607","fixed":["10.0.14393.6796"],"affected":"< 10.0.14393.6796","ecosystem":"vendor"},{"name":"microsoft windows 10 1809","fixed":["10.0.17763.5576"],"affected":"< 10.0.17763.5576","ecosystem":"vendor"},{"name":"microsoft windows 10 21h2","fixed":["10.0.19044.4170"],"affected":"< 10.0.19044.4170","ecosystem":"vendor"},{"name":"microsoft windows 10 22h2","fixed":["10.0.19045.4170"],"affected":"< 10.0.19045.4170","ecosystem":"vendor"},{"name":"microsoft windows 11 21h2","fixed":["10.0.22000.2836"],"affected":"< 10.0.22000.2836","ecosystem":"vendor"},{"name":"microsoft windows 11 22h2","fixed":["10.0.22621.3296"],"affected":"< 10.0.22621.3296","ecosystem":"vendor"},{"name":"microsoft windows 11 23h2","fixed":["10.0.22631.3296"],"affected":"< 10.0.22631.3296","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"= r2","ecosystem":"vendor"},{"name":"microsoft windows server 2012","fixed":[],"affected":"= r2","ecosystem":"vendor"},{"name":"microsoft windows server 2016","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2019","fixed":["10.0.17763.5576"],"affected":"< 10.0.17763.5576","ecosystem":"vendor"},{"name":"microsoft windows server 2022","fixed":["10.0.20348.2333"],"affected":"< 10.0.20348.2333","ecosystem":"vendor"},{"name":"microsoft windows server 2022 23h2","fixed":["10.0.25398.763"],"affected":"< 10.0.25398.763","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["endpoints","exploited","infrastructure","ransomware","windows","windows-servers"],"not_affected_if":["fully-patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft Windows update for CVE-2024-26169 per vendor instructions; the sources do not name the patched build.","status":"open","published_at":"2024-03-12T17:15:56+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:58:40+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T20:58:40Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft Windows update for CVE-2024-26169 per vendor instructions; the sources do not name the patched build.","reach":"local","impact":"high","summary":"A flaw in the Windows Error Reporting Service lets a local user with ordinary permissions gain SYSTEM privileges. Attackers have used it in real attacks, and CISA lists it as known exploited with ransomware tags.","category":"infrastructure","who_cares":["windows","windows-servers","endpoints"],"confidence":0.8,"needs_auth":"yes","worst_case":"local user gains full SYSTEM control of the machine","analyst_note":"Find the patched Windows build and KB number for CVE-2024-26169 in Microsoft's security update guide, and any detection guidance from CISA or Microsoft.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["fully-patched-windows"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000458,"input_tokens":2825,"output_tokens":351,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2024':10A,13A '-26169':11A,14A '10':19A,23A,27A,31A,35A '11':39A,43A,47A '1507':20A '1607':24A '1809':28A '2008':52A,56A '2012':60A '2016':64A '2019':68A '2022':72A,76A '21h2':32A,40A '22h2':36A,44A '23h2':48A,77A 'action':146C 'allow':133C 'appli':147C 'attack':104B,110B,136C 'cisa':112B,144C 'contain':126C 'cve':9A,12A 'discontinu':153C 'elev':5A 'endpoint':78B 'error':2A,91B,123C 'exploit':79B,117B 'flaw':87B 'gain':101B,141C 'improp':128C 'infrastructur':80B 'instruct':151C 'known':116B 'let':94B 'list':113B 'local':96B,135C 'manag':130C 'microsoft':15A,17A,21A,25A,29A,33A,37A,41A,45A,49A,53A,57A,61A,65A,69A,73A,121C 'ordinari':99B 'per':149C 'permiss':100B,139C 'privileg':7A,103B,129C,143C 'product':157C 'ransomwar':81B,119B 'real':109B 'report':3A,92B,124C 'requir':145C 'server':51A,55A,59A,63A,67A,71A,75A,85B 'servic':4A,93B,125C 'system':102B,142C 'tag':120B 'unavail':161C 'updat':148C,159C 'use':106B,154C 'user':97B,138C 'vendor':150C 'vulner':8A,131C 'window':1A,82B,84B,90B,122C 'windows':16A,18A,22A,26A,30A,34A,38A,42A,46A,50A,54A,58A,62A,66A,70A,74A 'windows-serv':83B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2024-03-12T17:15:56+00:00","kev":{"dateAdded":"2024-06-13","dueDate":"2024-07-04","requiredAction":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2024-26169","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-26169","severity":null,"published_at":"2024-06-13T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T15:39:41+00:00","note":null},{"source":"nvd","external_id":"CVE-2024-26169","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26169","severity":null,"published_at":"2024-03-12T17:15:56+00:00","modified_at":"2026-06-17T07:17:15+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+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"}