Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-7473

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. This occurs because the switch does not verify the tunnel protocol type, potentially leading to the unexpected processing of non-configured tun
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:919f12ac135049e82f5712471b0aa6e544f1a9134b2aeb955458964faaeaa5a6
Known exploited
CISA KEV
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/metrics/1/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","platforms":["7020R Series","7280R/R2 Series","7500R/R2 Series","7280R3 Series (Limited exposure: IP-in-IPv6 and GUEv6)","7500R3 Series (Limited exposure: IP-in-IPv6 and GUEv6)","7800R3 Series (Limited exposure: IP-in-IPv6 and GUEv6)"],"product":"EOS","vendor":"Arista Networks","versions":[{"status":"affected","version":"4.36.0","versionType":"custom"},{"lessThanOrEqual":"4.35","status":"affected","version":"4.35.0","versionType":"custom"},{"lessThanOrEqual":"4.34","status":"affected","version":"4.34.0","versionType":"custom"},{"lessThanOrEqual":"4.33","status":"aff…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/metrics/1/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-1023","description":"CWE-1023: Incomplete Comparison with Missing Factors","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/problemTypes/0/descriptions/0

Known exploitation assertions

2 source assertions
{"cwes":["CWE-1023"],"dateAdded":"2026-06-09","dueDate":"2026-06-23","knownRansomwareCampaignUse":"Unknown","notes":"https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137 ; https://nvd.nist.gov/vuln/detail/CVE-2026-7473","product":"Extensible Operating System","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Arista Extensible Operating System (EOS) contains an incomplete comparison with missing …
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:b7f5ec5e59f46d67b541292a8666f6935927f011dad98f7abdac4db28382f536 · sha256:635dff916c4092c0… · /vulnerabilities/44
    Open source location →
{"cwes":["CWE-1023"],"dateAdded":"2026-06-09","dueDate":"2026-06-23","knownRansomwareCampaignUse":"Unknown","notes":"https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137 ; https://nvd.nist.gov/vuln/detail/CVE-2026-7473","product":"Extensible Operating System","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Arista Extensible Operating System (EOS) contains an incomplete comparison with missing …
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:e65bf344886352e9749862eb5fcd1e19fa66f96ff305666bd2b30ea352fe5126 · sha256:16acee8334e59e44… · /vulnerabilities/41
    Open source location →

Source references

3 source assertions
{"tags":["vendor-advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/22872-security-advisory-0137"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/cna/references/0
{"tags":["vendor-advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/adp/0/references/0
{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-7473"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2e599ed7d4327f30553ae69993533d5358413403c9aec2d73d59bf943950ba1 · sha256:fedd5f7993459aa4… · /containers/adp/0/references/1

Attribution and limitations

  • CISA Known Exploited Vulnerabilities JSON: CISA named for provenance; do not use CISA/DHS marks or imply endorsement Source →
  • 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