{"id":"CVE-2026-91627","kind":"vulnerability","aliases":["CVE-2026-91627"],"related":[],"title":"Oracle Billing and Revenue Management: local low-privilege user can take over","description":"Vulnerability in the Oracle Communications Billing and Revenue Management product of Oracle Communications (component: Platform).  Supported versions that are affected are 15.0.0.0.0, 15.0.1.0.0, 15.1.0.0.0 and  15.2.0.0.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Communications Billing and Revenue Management executes to compromise Oracle Communications Billing and Revenue Management.  Successful attacks of this vulnerability can result in takeover of Oracle Communications Billing and Revenue Management. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).","summary":"Oracle Communications Billing and Revenue Management 15.0 through 15.2 has a flaw in its Platform component. A low-privileged user logged into the host where the product runs can compromise the application and take it over, with high impact to confidentiality, integrity and availability.","severity":"high","cvss":7.8,"epss":0.00162,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["billing","on-prem","oracle","telecom","vendor"],"not_affected_if":["no-local-logon","not-running-oracle-brm"],"how_to_check":"- Check the installed release against the affected list: `15.0.0.0.0`, `15.0.1.0.0`, `15.1.0.0.0`, `15.2.0.0.0`\n- Identify which hosts run Oracle Communications Billing and Revenue Management and who holds shell logon on them","fix":"- Apply the patch from Oracle's Critical Patch Update for the affected Billing and Revenue Management release (fixed version: unknown)\n- Restrict local logon on the host to administrators until patched","status":"open","published_at":"2026-10-20T22:21:02+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T03:08:29+00:00","updated_at":"2026-10-25T03:08:29+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T03:08:29Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the patch from Oracle's Critical Patch Update for the affected Billing and Revenue Management release (fixed version: unknown)\n- Restrict local logon on the host to administrators until patched","reach":"local","title":"Oracle Billing and Revenue Management: local low-privilege user can take over","impact":"high","summary":"Oracle Communications Billing and Revenue Management 15.0 through 15.2 has a flaw in its Platform component. A low-privileged user logged into the host where the product runs can compromise the application and take it over, with high impact to confidentiality, integrity and availability.","category":"vendor","nicknames":[],"who_cares":["oracle","billing","telecom","on-prem"],"confidence":0.6,"needs_auth":"yes","worst_case":"low-privileged local user takes over the billing application","analyst_note":"Find the fixed version and patch number in Oracle's Critical Patch Update advisory for this CVE; the sources here give none.","how_to_check":"- Check the installed release against the affected list: `15.0.0.0.0`, `15.0.1.0.0`, `15.1.0.0.0`, `15.2.0.0.0`\n- Identify which hosts run Oracle Communications Billing and Revenue Management and who holds shell logon on them","needs_analyst":true,"not_affected_if":["not-running-oracle-brm","no-local-logon"],"who_is_affected":"Teams running Oracle Communications Billing and Revenue Management versions 15.0.0.0.0 through 15.2.0.0.0 on servers where other local users have logon. The sources describe a local attack that needs an account on the infrastructure, so an internet-only deployment with no shell users is less exposed. Teams not running this Oracle product can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000674,"input_tokens":3556,"output_tokens":637,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-91627':15A,18A '/av':155C '15.0':32B '15.0.0.0.0':92C '15.0.1.0.0':93C '15.1.0.0.0':94C '15.2':34B '15.2.0.0.0':96C '3.1':142C,154C '7.8':145C 'affect':90C 'allow':100C 'applic':58B 'attack':103C,126C 'avail':70B,149C 'base':143C 'bill':2A,19B,28B,76C,112C,121C,137C 'communic':27B,75C,83C,111C,120C,136C 'compon':41B,84C 'compromis':56B,118C 'confidenti':67B,146C 'cve':13A,16A 'cvss':141C,151C,153C 'easili':97C 'execut':116C 'exploit':98C 'flaw':37B 'h':163C 'h/a':162C 'h/i':161C 'high':64B 'host':50B 'impact':65B,150C 'infrastructur':108C 'integr':68B,147C 'l/ac':156C 'l/pr':157C 'l/ui':158C 'local':6A 'log':47B 'logon':105C 'low':8A,44B,101C 'low-privileg':7A,43B 'manag':5A,31B,79C,115C,124C,140C 'n/s':159C 'on-prem':20B 'oracl':1A,23B,26B,74C,82C,110C,119C,135C 'platform':40B,85C 'prem':22B 'privileg':9A,45B,102C 'product':53B,80C 'result':131C 'revenu':4A,30B,78C,114C,123C,139C 'run':54B 'score':144C 'success':125C 'support':86C 'take':12A,60B 'takeov':133C 'telecom':24B 'u/c':160C 'user':10A,46B 'vector':152C 'vendor':25B 'version':87C 'vulner':71C,99C,129C","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle Communications Billing and Revenue Management versions 15.0.0.0.0 through 15.2.0.0.0 on servers where other local users have logon. The sources describe a local attack that needs an account on the infrastructure, so an internet-only deployment with no shell users is less exposed. Teams not running this Oracle product can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:21:02+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91627","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91627","severity":null,"published_at":"2026-10-20T22:21:02+00:00","modified_at":"2026-10-21T18:44:55+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91627","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91627","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T13:15:55+00:00","fetched_at":"2026-10-24T13:15:55+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"}