Security readout for executives and security teams
Plain-English summary
Ivanti Avalanche Manager has a critical flaw that may let an unauthenticated attacker crash the service or run arbitrary code. The source data identifies versions before 6.4.1, with 6.4.0 listed as affected. This is urgent for organizations using Avalanche because successful exploitation could compromise systems and disrupt operations.
Executive priority
Treat this as a near-term remediation priority if Ivanti Avalanche is in use. The issue is critical because it may allow remote unauthenticated code execution or service disruption, but available sources do not confirm active exploitation.
Technical view
CVE-2023-38036 is a CWE-120 buffer overflow in Ivanti Avalanche Manager before 6.4.1. CVSS 3.1 is 9.8: network exploitable, low complexity, no privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to organizations running Ivanti Avalanche Manager, especially version 6.4.0 or other deployments before 6.4.1. Internet-facing or broadly reachable management services would create higher operational risk.
Exploitation context
The provided sources do not state active exploitation, and the bundle marks KEV as false. The CVSS vector indicates remote unauthenticated exploitability, but no source here provides exploit maturity, public exploit availability, or observed attacks.
Researcher notes
Evidence is limited to the CVE record and Ivanti advisory reference. The affected data lists Ivanti Avalanche 6.4.0, while the description says Avalanche Manager before 6.4.1. Avoid assuming broader product scope without vendor confirmation.
Mitigation direction
- Upgrade affected Ivanti Avalanche Manager deployments to version 6.4.1 or later where applicable.
- Review the Ivanti advisory for vendor-confirmed remediation and any deployment-specific guidance.
- Restrict network access to Avalanche Manager to trusted administrative networks.
- Monitor logs for crashes, unexpected service restarts, or anomalous access attempts.
- Prioritize exposed management interfaces for immediate review.
Validation and detection
- Inventory Avalanche Manager deployments and record exact versions.
- Confirm whether any deployment is version 6.4.0 or before 6.4.1.
- Check whether Avalanche Manager is reachable from untrusted networks.
- Verify remediation status against the Ivanti advisory and CVE record.
- Confirm monitoring covers service disruption and suspicious management-plane activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-38036 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://forums.ivanti.com/s/article/Security-Advisory-Avalanche-CVE-2023-38036CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.