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CVE-2026-19490
citrix · netscaler_application_delivery_controller

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490

Description

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

Affected Products

VendorProductVersions
citrixnetscaler_application_delivery_controller14.1, 13.1, 14.1, 13.1

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
citrixnetscalercert_advisory90%
citrixnetscaler_gatewaycve_cpe95%

References

  • https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939

Related News (15 articles)

Tier D
The Hacker News20h ago
Warning: Two Unpatched Citrix NetScaler RCE Zero-Days Under Active Exploitation
→ No new info (linked only)
Tier D
SecurityWeek17d ago
Critical NetScaler Vulnerability Exploited in Attacks
→ No new info (linked only)
Tier C
Rapid7 Blog18d ago
Credentialed Pre-Port Discovery: Don't Probe the Host, Ask it
→ No new info (linked only)
Tier B
CCCS Canada23d ago
AL26-019 - Vulnerabilities impacting Citrix NetScaler ADC and NetScaler Gateway - CVE-2026-19490 and CVE-2026-19489
→ No new info (linked only)
Tier D
BleepingComputer23d ago
Critical Citrix NetScaler auth bypass now leveraged in attacks
→ No new info (linked only)
Tier D
Help Net Security37d ago
Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490)
→ No new info (linked only)
Tier D
CSO Online38d ago
Citrix issues critical security updates for its NetScaler devices
→ No new info (linked only)
Tier D
The Hacker News38d ago
Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers
→ No new info (linked only)
Tier B
BSI Advisories38d ago
[NEU] [hoch] Citrix Systems NetScaler (Gateway und ADC): Mehrere Schwachstellen
→ No new info (linked only)
Tier D
Heise Security38d ago
Citrix: Kritische Lücke erlaubt Umgehung der Authentifizierung
→ No new info (linked only)
Tier D
SecurityWeek38d ago
Exploitation Expected for Critical Authentication Bypass Patched in Citrix NetScaler
→ No new info (linked only)
Tier B
CERT-FR39d ago
Multiples vulnérabilités dans les produits Citrix (20 août 2026)
→ No new info (linked only)
Tier B
CCCS Canada39d ago
Citrix security advisory (AV26-833)
→ No new info (linked only)
Tier C
Rapid7 Blog39d ago
CVE-2026-19490: Critical Vulnerability Affecting Citrix NetScaler ADC and NetScaler Gateway
→ No new info (linked only)
Tier C
VulDB39d ago
CVE-2026-19490 | Citrix ADC/Gateway up to 63.21/73.32 privilege escalation
→ No new info (linked only)

Discussion (0)

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CISA KEV❌ No
Actively exploited❌ No
PublishedAug 19, 2026
Trending Score81
Source articles15
Independent11
Info Completeness0/14
Missing: cve_id, title, description, vendor, product, versions, cvss, epss, cwe, kev, exploit, patch, iocs, mitre_attack

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Related CVEs (5)

NONECVE-2026-19489
CVE-2026-19489: Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 thr
Trending: 60
NONECVE-2026-78547
Out-of-Bounds Write
Trending: 6
NONECVE-2026-8452EXPKEV
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Trending: 2
CRITICALCVE-2026-8451EXPKEV
Insufficient input validation leading to memory overread
Trending: 1
NONECVE-2026-18751
Citrix Workspace App for Mac Security Bulletin for CVE-2026-18751
Trending: 1

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Aug 19, 2026
Discovered by ZDM
Aug 19, 2026