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CVE-2026-3055

Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dc4206a026ae120f4f207bbcb22302c020f32caae8f387bb97bbc7b845f29a1a
Known exploited
CISA KEV
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"ADC","vendor":"NetScaler","versions":[{"lessThan":"66.59","status":"affected","version":"14.1","versionType":"patch"},{"lessThan":"62.23","status":"affected","version":"13.1","versionType":"patch"},{"lessThan":"37.262","status":"affected","version":"13.1 FIPS and NDcPP","versionType":"patch"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Gateway","vendor":"NetScaler","versions":[{"lessThan":"66.59","status":"affected","version":"14.1","versionType":"patch"},{"lessThan":"62.23","status":"affected","version":"13.1","versionType":"patch"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"ADC","vendor":"NetScaler","versions":[{"lessThan":"66.59","status":"affected","version":"14.1","versionType":"patch"},{"lessThan":"62.23","status":"affected","version":"13.1","versionType":"patch"},{"lessThan":"37.262","status":"affected","version":"13.1 FIPS and NDcPP","versionType":"patch"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Gateway","vendor":"NetScaler","versions":[{"lessThan":"66.59","status":"affected","version":"14.1","versionType":"patch"},{"lessThan":"62.23","status":"affected","version":"13.1","versionType":"patch"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/problemTypes/0/descriptions/0

Known exploitation assertions

2 source assertions
{"cwes":["CWE-125"],"dateAdded":"2026-03-30","dueDate":"2026-04-02","knownRansomwareCampaignUse":"Unknown","notes":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300&articleURL=NetScaler_ADC_and_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_3055_and_CVE_2026_4368 ; https://nvd.nist.gov/vuln/detail/CVE-2026-3055","product":"NetScaler","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":"Citrix NetScaler ADC (for…
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:95493e324f5b9d26c520f5f10eb058236eadb5e73ab3e583098bedbbaa1ae082 · sha256:16acee8334e59e44… · /vulnerabilities/102
    Open source location →
{"cwes":["CWE-125"],"dateAdded":"2026-03-30","dueDate":"2026-04-02","knownRansomwareCampaignUse":"Unknown","notes":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300&articleURL=NetScaler_ADC_and_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_3055_and_CVE_2026_4368 ; https://nvd.nist.gov/vuln/detail/CVE-2026-3055","product":"NetScaler","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":"Citrix NetScaler ADC (for…
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:a97e85728ec867850875f5e2457d699e304a302571ad962dc2e93fd7e6188f0b · sha256:635dff916c4092c0… · /vulnerabilities/105
    Open source location →

Source references

3 source assertions
{"tags":["third-party-advisory"],"url":"https://labs.watchtowr.com/please-we-beg-just-one-weekend-free-of-appliances-citrix-netscaler-cve-2026-3055-memory-overread-part-2/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/adp/0/references/0
{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /containers/cna/references/0
{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3055"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a2246c40422c26c997f6d753bcd907c6b26cb294a860121e441cc8d2bde2b294 · sha256:e6c47d652597e843… · /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.

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