Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-20010

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific fields in an LLDP frame. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface of an affected device. A successful exploit could allow the attacker to cause
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b4b9aa333af95f9802ed3857821fcb5c6edb702bd4e6a2b6638b6fa1e3f54416
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unknown","product":"Cisco NX-OS Software","vendor":"Cisco","versions":[{"status":"affected","version":"10.3(1)"},{"status":"affected","version":"10.3(2)"},{"status":"affected","version":"10.3(3)"},{"status":"affected","version":"10.4(1)"},{"status":"affected","version":"10.3(99w)"},{"status":"affected","version":"10.3(3w)"},{"status":"affected","version":"10.3(99x)"},{"status":"affected","version":"10.3(3o)"},{"status":"affected","version":"10.3(4)"},{"status":"affected","version":"10.3(3p)"},{"status":"affected","version":"10.3(4a)"},{"status":"affected","version":"10.4(2)"}…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"Cisco Unified Computing System (Managed)","vendor":"Cisco","versions":[{"status":"affected","version":"4.3(4e)"},{"status":"affected","version":"4.3(6b)"},{"status":"affected","version":"4.3(4c)"},{"status":"affected","version":"4.3(4f)"},{"status":"affected","version":"4.3(6d)"},{"status":"affected","version":"4.3(5e)"},{"status":"affected","version":"4.3(4d)"},{"status":"affected","version":"4.3(4b)"},{"status":"affected","version":"4.3(5a)"},{"status":"affected","version":"4.3(5c)"},{"status":"affected","version":"4.3(5d)"},{"status":"affected","version…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/affected/2

{"defaultStatus":"unknown","product":"Cisco NX-OS System Software in ACI Mode","vendor":"Cisco","versions":[{"status":"affected","version":"16.0(2h)"},{"status":"affected","version":"16.0(2j)"},{"status":"affected","version":"16.0(3d)"},{"status":"affected","version":"16.0(3e)"},{"status":"affected","version":"16.0(4c)"},{"status":"affected","version":"16.0(5h)"},{"status":"affected","version":"16.0(3g)"},{"status":"affected","version":"16.0(5j)"},{"status":"affected","version":"16.0(6c)"},{"status":"affected","version":"16.1(1f)"},{"status":"affected","version":"16.0(7e)"},{"status":"affected…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/affected/1

Affected products and versions

3 source assertions
{"defaultStatus":"unknown","product":"Cisco NX-OS Software","vendor":"Cisco","versions":[{"status":"affected","version":"10.3(1)"},{"status":"affected","version":"10.3(2)"},{"status":"affected","version":"10.3(3)"},{"status":"affected","version":"10.4(1)"},{"status":"affected","version":"10.3(99w)"},{"status":"affected","version":"10.3(3w)"},{"status":"affected","version":"10.3(99x)"},{"status":"affected","version":"10.3(3o)"},{"status":"affected","version":"10.3(4)"},{"status":"affected","version":"10.3(3p)"},{"status":"affected","version":"10.3(4a)"},{"status":"affected","version":"10.4(2)"}…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"Cisco Unified Computing System (Managed)","vendor":"Cisco","versions":[{"status":"affected","version":"4.3(4e)"},{"status":"affected","version":"4.3(6b)"},{"status":"affected","version":"4.3(4c)"},{"status":"affected","version":"4.3(4f)"},{"status":"affected","version":"4.3(6d)"},{"status":"affected","version":"4.3(5e)"},{"status":"affected","version":"4.3(4d)"},{"status":"affected","version":"4.3(4b)"},{"status":"affected","version":"4.3(5a)"},{"status":"affected","version":"4.3(5c)"},{"status":"affected","version":"4.3(5d)"},{"status":"affected","version…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/affected/2
{"defaultStatus":"unknown","product":"Cisco NX-OS System Software in ACI Mode","vendor":"Cisco","versions":[{"status":"affected","version":"16.0(2h)"},{"status":"affected","version":"16.0(2j)"},{"status":"affected","version":"16.0(3d)"},{"status":"affected","version":"16.0(3e)"},{"status":"affected","version":"16.0(4c)"},{"status":"affected","version":"16.0(5h)"},{"status":"affected","version":"16.0(3g)"},{"status":"affected","version":"16.0(5j)"},{"status":"affected","version":"16.0(6c)"},{"status":"affected","version":"16.1(1f)"},{"status":"affected","version":"16.0(7e)"},{"status":"affected…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-805","description":"Buffer Access with Incorrect Length Value","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-n3kn9k_aci_lldp_dos-NdgRrrA3","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n3kn9k_aci_lldp_dos-NdgRrrA3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ffd7db619bc8e05c4315637c3b50ee629d0f122734158bd79075c64235dc1f3c · sha256:9c5c230bdea9264a… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer