CVE-2026-13474 (GCVE-0-2026-13474)

Vulnerability from cvelistv5 – Published: 2026-06-30 13:03 – Updated: 2026-06-30 13:27
VLAI
Title
Denial of service via malformed HTTP/2 requests
Summary
Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-401 - Missing release of memory after effective lifetime
Assigner
References
Impacted products
Vendor Product Version
NetScaler ADC Affected: 14.1 , < 72.61 (patch)
Affected: 13.1 , < 63.18 (patch)
Affected: 14.1 FIPS , < 72.61 (patch)
Affected: 13.1 FIPS and NDcPP , < 37.272 (patch)
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NetScaler Gateway Affected: 14.1 , < 72.61 (patch)
Affected: 13.1 , < 63.18 (patch)
Create a notification for this product.
Date Public
2026-06-30 12:00
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.