Heap-based Buffer Overflow DoS in Ivanti Connect Secure, Policy Secure, ZTA Gateway, and Neurons for Secure Access
CVE-2025-5462 is a heap-based buffer overflow affecting Ivanti Connect Secure before 22.7R2.8 or 22.8R2, Ivanti Policy Secure before 22.7R1.5, Ivanti ZTA Gateway before 22.8R2.3-723, and Ivanti Neurons for Secure Access before 22.8R1.4. The available supporting content indicates the flaw exists in shared code across these products and is caused by insufficient bounds checking when copying user-supplied data into heap-allocated buffers exposed through network-accessible interfaces. A remote unauthenticated attacker can send specially crafted input to trigger memory corruption. Based on the provided information, the expected outcome is application crash or unexpected termination resulting in denial of service.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Ivanti vulnerability described as a heap buffer overflow, mentioned only as part of Ivanti's 2025 security history.
A high-severity heap-based buffer overflow vulnerability in Ivanti Connect Secure, Policy Secure, ZTA Gateway, and Neurons for Secure Access that can allow remote unauthenticated attackers to cause denial-of-service.
A heap-based buffer overflow vulnerability in multiple Ivanti remote access and zero trust products that allows remote unauthenticated attackers to trigger memory corruption and likely denial of service.
A heap-based buffer overflow vulnerability that allows a remote unauthenticated attacker to trigger a denial of service in multiple Ivanti products.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.