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TI-2026-78899 Aliases CVE-2026-92209GHSA-g7q4-gvgr-3xv5

Weak credentials in NoMachine Redis allow local privilege escalation

Priority LOW 36CWE-331Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA.

Summary

NoMachine versions from 9.7.3 are affected by a local privilege escalation flaw in the authentication that controls access to its Redis database. Credentials are generated with insufficient entropy (CWE-331). A local attacker who can already run low privilege code can escalate privileges and execute arbitrary code in the context of the service account.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the authentication mechanism controlling access to the Redis database. The issue results from using insufficient entropy in the generation of credentials. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account. Was ZDI-CAN-30984.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00243 15th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NoMachineNoMachine9.7.3—No fix listedCNA
  • NoMachine VendorNoMachine Affected 9.7.3 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:*——NoMachine
  • cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:* Versions — — ·NoMachine

Remediation

The sources list no fixed version for NoMachine.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-92209
  2. 2026-10-21 Alias added: GHSA-g7q4-gvgr-3xv5
  3. 2026-10-23 CISA SSVC decision points changed
  4. 2026-10-23 Priority changed: MEDIUM → LOW
  5. 2026-10-23 CISA SSVC decision points changed

References

Other 1

  • TI-2023-20294 An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client… CVSS 3.1CRITICAL 9.1
  • TI-2026-84863 Heap overflow in NoMachine web service allows remote code execution CVSS 3.0CRITICAL 9.8
  • TI-2018-00619 Improper input validation in NoMachine App for Android CVSS 3.0CRITICAL 9.8
  • TI-2017-09455 An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows… CVSS 3.0HIGH 8.8
  • TI-2026-15017 OS command injection in NoMachine CVSS 3.0HIGH 8.8
  • TI-2026-78898 Heap overflow in NoMachine mDNS parsing enables remote code execution CVSS 3.0HIGH 8.8
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences