C21/100
Vulnerability · critical
Citrix patches 12 NetScaler and Secure Access Client flaws
Tier C · Keep an eye on it – Check if you’re affected
Who’s exposed: NetScaler ADC, Gateway, Console and Secure Access Client users
Tier C because: Hits tech teams
Reach
Attack
Damage
Fix
Popular tool
What to do
- Apply the Citrix patches for NetScaler ADC, NetScaler Gateway, NetScaler Console and Secure Access Client.
The Brief
- Citrix has released patches for 12 security flaws affecting NetScaler ADC, NetScaler Gateway, NetScaler Console and Secure Access Client.
- The flaws could lead to denial-of-service (DoS) or an authentication bypass.
- The critical vulnerabilities impact NetScaler ADC and NetScaler products.
Why it matters
Administrators running affected Citrix NetScaler or Secure Access Client software face possible authentication bypass and denial of service until they install the patches.
The checklist behind the tier
Checklist · 2 of 10 yes
| Yes | Hits tech teams | NetScaler ADC and Gateway are network appliances that IT and ops teams run. |
| No | Core infrastructure | A single vendor's appliance, not software nearly every team runs. |
| Yes | Popular tool | NetScaler is a widely deployed enterprise appliance used by many organizations. |
| No | Exploited in the wild | The Hacker News: source reports patches and risks only, no observed attacks. |
| No | Public exploit | The Hacker News: source mentions no published exploit code or PoC. |
| No | Remote, no login | The Hacker News: source mentions an authentication bypass but does not say it is unauthenticated network access. |
| No | Full takeover | The Hacker News: source names authentication bypass and DoS but not code execution or admin takeover. |
| No | Secrets exposed | The Hacker News: source reports no stolen or exposed credentials or data. |
| No | Supply chain | The Hacker News: source reports vulnerability patches, not compromised packages or updates. |
| No | No fix yet | The Hacker News: Citrix has released patches for the flaws. |
Source
Citrix Patches 12 NetScaler and Secure Access Client Flaws, Including Authentication Bypass ↗ The Hacker News · 2h ago
First seen · 1 source · Full story page · How tiers are decided