CVE-2025-22457 Ivanti Connect Secure, Policy Secure, and ZTA Gateways: memory-safety flaw
In plain words: The program mishandles the memory it uses to keep track of data. A specially made input can scramble that memory. Usually lets an attacker crash the program or run their own code with its permissions.
Confirmed exploited by CISA on · US federal patch deadline Apr 11, 2025
What to do
- Install Ivanti's security update for Connect Secure, Policy Secure, and ZTA Gateways. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability
- Product
- Ivanti Connect Secure, Policy Secure, and ZTA Gateways
- CISA description
- Ivanti Connect Secure, Policy Secure, and ZTA Gateways contains a stack-based buffer overflow vulnerability that allows a remote unauthenticated attacker to achieve remote code execution.
- Type of flaw
- Memory-safety flaw (CWE-121)
- Confirmed exploited
- Apr 4, 2025 — known to be used in ransomware attacks
- US federal patch deadline
- Apr 11, 2025
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Answering about CVE-2025-22457 ·
Questions about CVE-2025-22457
Is CVE-2025-22457 being exploited?
Yes. CISA added CVE-2025-22457 to its Known Exploited Vulnerabilities catalog on Apr 4, 2025, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2025-22457?
Install Ivanti's security update for Connect Secure, Policy Secure, and ZTA Gateways. If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2025-22457?
Only if you use Ivanti Connect Secure, Policy Secure, and ZTA Gateways. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.