Security readout for executives and security teams
Plain-English summary
CVE-2026-2339 affects TUBITAK BILGEM Liderahenk before version 3.5.1. A missing authentication check on a critical function could let an attacker include remote code, abuse privileges, or inject commands. The CVSS score is 7.5 high, but exploitation requires user interaction and high attack complexity.
Executive priority
Treat as a high-priority patching and exposure review item for environments using Liderahenk. The business risk is potential system compromise, but current sources do not show confirmed active exploitation. Prioritize inventory, version validation, and vendor-directed remediation.
Technical view
The issue is CWE-306, Missing Authentication for Critical Function, in Liderahenk before 3.5.1. The CVSS v3.1 vector is AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. Public records describe possible remote code inclusion, privilege abuse, and command injection. CISA KEV status in the provided data is false.
Likely exposure
Organizations running TUBITAK BILGEM Liderahenk versions before 3.5.1 are potentially exposed. Internet reachability is not confirmed by the sources, but the CVSS vector indicates network attack surface. Exposure depends on deployment architecture and whether vulnerable functions are reachable.
Exploitation context
No cited source confirms active exploitation. The vulnerability is serious because successful exploitation can affect confidentiality, integrity, and availability. The CVSS vector indicates no privileges are required, but user interaction and high attack complexity are factors that may limit practical exploitation.
Researcher notes
The public record is concise and references Turkish government advisories, one marked broken in the supplied data. The affected-version statement says before 3.5.1, while the affected object is sparse. Avoid assuming exploit availability, affected configurations, or fixed build details beyond the cited records.
Mitigation direction
- Identify all Liderahenk deployments and versions.
- Upgrade Liderahenk systems below 3.5.1 per vendor guidance.
- If upgrade timing is unclear, consult the official advisory.
- Restrict network access to Liderahenk administration or management interfaces.
- Monitor for unexpected command execution or privilege changes.
Validation and detection
- Confirm installed Liderahenk version on each system.
- Flag any instance running below version 3.5.1.
- Review whether vulnerable services are reachable over the network.
- Check logs for unusual remote code inclusion or command activity.
- Verify remediation against the official advisory.
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-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2026-2339 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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.
SSVC decision data
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H1.65.9TR-CERTVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.usom.gov.tr/bildirim/tr-26-0087CVE reference, TR-CERT · government-resource, broken-link
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0087CVE reference, TR-CERT · government-resource
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.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.