CVE-2026-10520: Ivanti Sentry OS Command Injection Vulnerability
Ivanti Sentry (formerly known as MobileIron Sentry) contains an OS command injection vulnerability which could allow a remote unauthenticated user to achieve root-level remote code execution. This vulnerability can be successfully exploited in cases where the Sentry appliance is in an unmanaged state with its endpoints externally reachable. The use of mTLS with EPMM or restricted HTTPS access through Neurons for MDM makes interfaces inaccessible to external actors.
Overview
Ivanti Sentry contains an OS command injection flaw that allows a remote, unauthenticated attacker to execute arbitrary commands as root on the appliance. Versions before R10.5.2, R10.6.2, and R10.7.1 are affected. Exploitation is practical only when the Sentry appliance is in an unmanaged state with its management interfaces directly reachable from external networks; deployments protected by mutual TLS with EPMM or restricted through Neurons for MDM are not reachable by external actors.
Vulnerability details
OS command injection (CWE-78) occurs when an application passes attacker-controlled input to a system shell or command interpreter without adequate sanitization. In Sentry, a network-accessible endpoint accepts input that is incorporated into an OS-level command without stripping or escaping shell metacharacters. Because no authentication gate precedes the vulnerable code path, any network-reachable host can supply the malicious input. The flaw executes in the context of the root account, meaning the entire appliance is compromised on a single successful request.
An attacker sends a crafted HTTP or HTTPS request to an externally reachable endpoint on the Sentry appliance. The specific parameter carrying the injected command is not publicly identified in available sources. The injected shell payload executes as root, giving the attacker full control over the appliance: reading or modifying configuration and credential material, pivoting to managed mobile devices or backend MDM infrastructure, and disrupting availability. Exploitation is conditional on the appliance being in an unmanaged state with its endpoints exposed externally; mTLS-protected or Neurons-for-MDM-restricted deployments are not reachable by this path.
Severity and impact
Exploitation status
This vulnerability is confirmed as actively exploited in the wild — it is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.
Detection and monitoring
- Review web server and application logs on the Sentry appliance for requests containing shell metacharacters (semicolons, pipe symbols, backticks, dollar-sign subshells) in parameter values, particularly from source IPs with no prior authenticated session history.
- Monitor the Sentry appliance for unexpected child processes spawned by the web application service, such as shells (sh, bash) or network utilities (curl, wget, nc) with parent processes belonging to the Sentry application stack.
- Audit network flow logs for outbound connections from the Sentry appliance to external hosts on non-standard ports, which may indicate post-exploitation callback activity from a successfully injected command.
Remediation
Additional hardening
- Upgrade Sentry to R10.5.2 (for the 10.5.x line), R10.6.2 (for the 10.6.x line), or R10.7.1 (for the 10.7.x line). See the vendor advisory in References for the full patch matrix.
- Restrict external access to Sentry management interfaces immediately: place the appliance behind a firewall or access control list that permits connections only from known, trusted IP ranges rather than the open internet.
- Configure mutual TLS with EPMM or restrict HTTPS access through Neurons for MDM, as the vendor confirms these controls make the vulnerable interfaces inaccessible to external actors.
- Conduct forensic triage on any Sentry appliance that was externally reachable while running an affected version, following CISA forensic triage guidance referenced in the KEV entry, before returning the appliance to production.
Key dates
References
- https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Sentry-CVE-2026-10520-CVE-2026-10523?language=en_US
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-10520
- https://github.com/watchtowrlabs/watchTowr-vs-Ivanti-Sentry-RCE-CVE-2026-10520-CVE-2026-10523
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-10520
Frequently asked questions
Does CVE-2026-10520 affect my FedRAMP authorization?
If Ivanti Sentry runs inside your authorization boundary, yes. CVE-2026-10520 appears on CISA's Known Exploited Vulnerabilities (KEV) catalog, and its June 14, 2026 remediation deadline has already passed. For a FedRAMP-authorized service, an unpatched KEV in the boundary is an assessor finding. An overdue one is a finding your assessor and sponsoring agency can see right now. Your options are to remediate it immediately or formally document the mitigation and the delay.
How does Knox help me handle CVE-2026-10520?
Knox does not patch your software. Remediating Ivanti Sentry is your responsibility under the FedRAMP shared-responsibility model. What Knox provides is the pre-authorized, single-tenant boundary to remediate within, along with continuous compliance monitoring and audit-artifact coverage that support documentation of the fix for your next assessment. The remediation work is yours to carry out; maintaining a defensible compliance posture while you do it is not something you have to manage on your own.
How does Knox's monitoring help with vulnerabilities like this?
Knox's automated continuous monitoring platform watches your environment for newly disclosed vulnerabilities and compliance issues on an ongoing basis. For a CVE like CVE-2026-10520, that means exposure surfaces through continuous monitoring rather than waiting for an assessor to flag it at scheduled review time.
How do I get FedRAMP authorized with Knox?
Knox runs a FedRAMP-as-a-Service platform. It gives SaaS vendors a pre-authorized cloud boundary on AWS, Azure, and GCP. Your application inherits 60-80% of the required security controls. You reach FedRAMP authorization in about 90 days for roughly 90% less than the traditional $3.5M path. Book a meeting and Knox will map your path to authorization.
CVE-2026-10520's remediation deadline of June 14, 2026 has passed. What happens now?
If CVE-2026-10520 remains unremediated, it is already a Plan of Action and Milestones (POA&M) item. A growing POA&M list is what turns a routine continuous-monitoring review into a difficult conversation with your sponsoring agency. Closing the finding out and documenting why the deadline was missed is what keeps your authorization intact and the agency relationship on solid footing.
Ready to achieve FedRAMP authorization in 90 days or less?
Schedule a meeting to discuss scope, parse readiness, and map your company’s accelerated path to FedRAMP authorization.
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