{"id":"CVE-2019-1297","kind":"vulnerability","aliases":["CVE-2019-1297"],"related":[],"title":"Microsoft Excel: Microsoft Excel Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'.","summary":"Microsoft Excel fails to properly handle objects in memory, which allows remote code execution. An attacker who gets a victim to open a crafted file can run code with the victim's privileges.","severity":"critical","cvss":9.3,"epss":0.21805,"exploited":true,"exploited_at":"2022-03-03T00:00:00+00:00","products":[{"name":"Microsoft Excel","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["excel","exploited","infrastructure","microsoft-office","windows"],"not_affected_if":["excel-not-installed"],"how_to_check":"Check the installed Microsoft Excel build against Microsoft's security update guide for CVE-2019-1297; unknown whether the sources give a specific version or file to inspect.","fix":"Apply the Microsoft security update for CVE-2019-1297 per vendor instructions (CISA required action). Exact fixed build: unknown.","status":"open","published_at":"2019-09-11T22:15:18+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:24:31+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:24:31Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security update for CVE-2019-1297 per vendor instructions (CISA required action). Exact fixed build: unknown.","reach":"unknown","impact":"high","summary":"Microsoft Excel fails to properly handle objects in memory, which allows remote code execution. An attacker who gets a victim to open a crafted file can run code with the victim's privileges.","category":"infrastructure","who_cares":["excel","windows","microsoft-office"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code as the victim user after they open a crafted file","analyst_note":"Confirm affected Excel builds and fixed KB numbers from Microsoft's CVE-2019-1297 advisory; sources gave no version data.","how_to_check":"Check the installed Microsoft Excel build against Microsoft's security update guide for CVE-2019-1297; unknown whether the sources give a specific version or file to inspect.","needs_analyst":true,"not_affected_if":["excel-not-installed"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000478,"input_tokens":2816,"output_tokens":392,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-1297':11A,14A '-2019':10A,13A 'aka':77C 'allow':34B 'attack':39B 'code':6A,36B,51B,59C,81C 'craft':47B 'cve':9A,12A 'excel':2A,4A,16A,17B,25B,65C,79C 'execut':7A,37B,60C,82C 'exist':62C 'exploit':18B 'fail':26B,70C 'file':48B 'get':41B 'handl':29B,73C 'infrastructur':19B 'memori':32B,76C 'microsoft':1A,3A,15A,21B,24B,64C,78C 'microsoft-offic':20B 'object':30B,74C 'offic':22B 'open':45B 'privileg':56B 'proper':28B,72C 'remot':5A,35B,58C,80C 'run':50B 'softwar':66C,69C 'victim':43B,54B 'vulner':8A,61C,83C 'window':23B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-09-11T22:15:18+00:00","kev":{"dateAdded":"2022-03-03","dueDate":"2022-03-17","requiredAction":"Apply updates per vendor instructions.","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":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2019-1297","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1297","severity":null,"published_at":"2022-03-03T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T10:39:07+00:00","note":null},{"source":"epss","external_id":"CVE-2019-1297","url":"https://api.first.org/data/v1/epss?cve=CVE-2019-1297","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:44+00:00","fetched_at":"2026-10-23T19:13:44+00:00","note":null},{"source":"nvd","external_id":"CVE-2019-1297","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1297","severity":null,"published_at":"2019-09-11T22:15:18+00:00","modified_at":"2026-06-17T02:28:19+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+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"}