CVE-2026-53564NVD

Vulnerability Summary

Vulnerability in Citrix UniconOS leading to Arbitrary file read and write

This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.

Severity Level

MEDIUM(5.1)

Published Date

Oct 13, 2026

Last Modified

Oct 14, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.29%Probability

Root Weakness (CWE)

N/A

CVSS v4.0 Base Metrics — Score 5.1 (MEDIUM)

Attack VectorAdjacent

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredNone

User InteractionPassive

Confidentiality (Vulnerable System)Low

Integrity (Vulnerable System)Low

Availability (Vulnerable System)None

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

Citrix UniconOS < 2607.2 CR
Citrix UniconOS < 2603 LTSR CU2

Patched Versions

Citrix UniconOS 2607.2 CR
Citrix UniconOS 2603 LTSR CU2

🎁7-Day Free Trial — Try Pro or Team, no card required.

📧Email Delivery — Threat intel straight to your inbox.

♾️Unlimited Vendors — Track your entire stack.

🚨All New CVEs — Be the first to know.

📈EPSS Spike Alerts — Catch rising risk before it peaks.

🎯Custom EPSS/CVSS — Filter noise, focus on risk.

🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.

🐙GitHub Issues — Auto-tracked, no duplicates.

📬Weekly Digest — One clean summary, not inbox spam.

🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).

💬Webhooks — Slack & Teams integration.

🔀Smart Routing — Critical alerts to one channel, rest to another.

🚫Ad-Free — Uninterrupted experience.