{"id":"CVE-2026-0326","kind":"vulnerability","aliases":["CVE-2026-0326"],"related":[],"title":"PAN-OS: buffer overflow lets an unauthenticated attacker crash service processes","description":"A buffer overflow vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to disrupt service processing by causing a service process crash or memory corruption.\n\n\n\nPanorama and Prisma® Access are not affected by this vulnerability.","summary":"A buffer overflow in Palo Alto Networks PAN-OS lets an unauthenticated attacker crash a service process or corrupt memory. The sources describe the impact as service disruption and do not claim code execution.","severity":"low","cvss":1.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["firewalls","infrastructure","network-security","pan-os"],"not_affected_if":["panorama","prisma-access"],"how_to_check":"- Check the PAN-OS version on the firewall against the advisory's affected ranges; the sources do not list them.\n- Confirm whether the device is Panorama or Prisma Access, which the sources say are not affected.","fix":null,"status":"open","published_at":"2026-11-11T20:17:01+00:00","first_seen_at":"2026-11-11T20:28:52+00:00","triaged_at":"2026-11-11T20:30:21+00:00","updated_at":"2026-11-11T20:30:21+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-11T20:30:21Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"PAN-OS: buffer overflow lets an unauthenticated attacker crash service processes","impact":"low","summary":"A buffer overflow in Palo Alto Networks PAN-OS lets an unauthenticated attacker crash a service process or corrupt memory. The sources describe the impact as service disruption and do not claim code execution.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["pan-os","firewalls","network-security"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"service process crashes or memory corrupts, disrupting firewall processing","analyst_note":"Find the PAN-OS affected version ranges and fixed versions in the Palo Alto Networks advisory for CVE-2026-0326; NVD record alone does not give them.","how_to_check":"- Check the PAN-OS version on the firewall against the advisory's affected ranges; the sources do not list them.\n- Confirm whether the device is Panorama or Prisma Access, which the sources say are not affected.","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["panorama","prisma-access"],"who_is_affected":"PAN-OS firewall deployments are the affected product; the sources say Panorama and Prisma Access are not affected. The sources do not say which PAN-OS versions or configurations are exposed, or whether the flaw is reachable on management or data interfaces.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000727,"input_tokens":4551,"output_tokens":544,"severity_before":"low"},"analyst_status":null,"analyst_note":null,"search":"'-0326':15A,18A '-2026':14A,17A 'access':94C 'affect':97C 'alto':32B,68C 'attack':9A,40B,77C 'buffer':4A,28B,63C 'caus':83C 'claim':59B 'code':60B 'corrupt':46B,90C 'crash':10A,41B,87C 'cve':13A,16A 'describ':50B 'disrupt':55B,79C 'enabl':74C 'execut':61B 'firewal':19B 'impact':52B 'infrastructur':20B 'let':6A,37B 'memori':47B,89C 'network':22B,33B,69C 'network-secur':21B 'os':3A,26B,36B,72C 'overflow':5A,29B,64C 'palo':31B,67C 'pan':2A,25B,35B,71C 'pan-o':1A,24B,34B,70C 'panorama':91C 'prisma':93C 'process':12A,44B,81C,86C 'secur':23B 'servic':11A,43B,54B,80C,85C 'softwar':73C 'sourc':49B 'unauthent':8A,39B,76C 'vulner':65C,100C","nicknames":[],"mitigations":[],"who_affected":"PAN-OS firewall deployments are the affected product; the sources say Panorama and Prisma Access are not affected. The sources do not say which PAN-OS versions or configurations are exposed, or whether the flaw is reachable on management or data interfaces.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["firewalls","infrastructure","low","networksecurity","panos"],"campaign_type":null,"search_a":"'-0326':15A,18A '-2026':14A,17A 'attack':9A 'buffer':4A 'crash':10A 'cve':13A,16A 'let':6A 'os':3A 'overflow':5A 'pan':2A 'pan-o':1A 'process':12A 'servic':11A 'unauthent':8A","search_b":"'alto':32B 'attack':40B 'buffer':28B 'claim':59B 'code':60B 'corrupt':46B 'crash':41B 'describ':50B 'disrupt':55B 'execut':61B 'firewal':19B 'impact':52B 'infrastructur':20B 'let':37B 'memori':47B 'network':22B,33B 'network-secur':21B 'os':26B,36B 'overflow':29B 'palo':31B 'pan':25B,35B 'pan-o':24B,34B 'process':44B 'secur':23B 'servic':43B,54B 'sourc':49B 'unauthent':39B","search_c":"'access':94C 'affect':97C 'alto':68C 'attack':77C 'buffer':63C 'caus':83C 'corrupt':90C 'crash':87C 'disrupt':79C 'enabl':74C 'memori':89C 'network':69C 'os':72C 'overflow':64C 'palo':67C 'pan':71C 'pan-o':70C 'panorama':91C 'prisma':93C 'process':81C,86C 'servic':80C,85C 'softwar':73C 'unauthent':76C 'vulner':65C,100C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T20:17:01+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber","cvss_by":"psirt@paloaltonetworks.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-0326","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0326","severity":null,"published_at":"2026-11-11T20:17:01+00:00","modified_at":"2026-11-11T20:17:02+00:00","first_seen_at":"2026-11-11T20:28:52+00:00","fetched_at":"2026-11-11T20:28:52+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}