Citrix patches 28 NetScaler flaws, one critical on default installs
CVE-2026-120868, a CVSS 9.3 memory overflow, needs no login or special feature and can crash any unpatched appliance.
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CVE-2026-107411
Memory overflow in Citrix NetScaler RTSP ALG
- CVSS 4.0
- 8.7 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A memory overflow in the RTSP application-layer gateway of Citrix NetScaler can cause unpredictable or erroneous behavior or a denial of service. A remote attacker can trigger it over the network with no authentication and no user interaction. Impact is limited to availability of the affected appliance. Citrix has not listed affected builds or a fixed release.
What to do: Apply Citrix's update for CVE-2026-107411. No workaround is stated.
| Product | Affected |
|---|---|
| Citrix NetScaler | — |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Memory overflow in RTSP ALG can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X