CVE-2025-5451 Memory corruption in Connect Secure
Remote authenticated admin can trigger a stack-based buffer overflow causing denial of service in Ivanti Connect Secure and Policy Secure.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-5451?
CVE-2025-5451 is a medium-severity memory corruption vulnerability in Ivanti Connect Secure, published on 8 Jul 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.8 and Ivanti Policy Secure before version 22.7R1.5 allows a remote authenticated attacker with admin rights to trigger a denial of service.
Which versions are affected by CVE-2025-5451?
It affects 2 products.
Products include Ivanti Connect Secure, Ivanti Policy Secure.
How do I fix CVE-2025-5451?
No fix has been published for CVE-2025-5451 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-5451 being exploited?
There is no known exploitation of CVE-2025-5451 in the wild and no public exploit code.
Other vulnerabilities in Ivanti Connect Secure
- CVE-2021-22893 Ivanti Pulse Connect Secure Use-After-Free
- CVE-2019-11510 Ivanti Pulse Connect Secure Arbitrary File Read
- CVE-2024-21887 Ivanti Connect Secure and Policy Secure Command Injection
- CVE-2025-22457 Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow
- CVE-2025-0282 Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow
Sources
Also known as GHSA-83c3-4c79-gj5j.