Vulnerability · CVE-2026-114549
ZDI-26-786: NoMachine nxwebrunner Heap-based Buffer Overflow Remote Code Execution Vulnerability
Published Oct 22, 2026 · ZDI-26-786: NoMachine nxwebrunner Heap-based
Last checked Nov 4, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-114549. EPSS is 0.58%. Act only if a listed version of ZDI-26-786: NoMachine nxwebrunner Heap-based is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (ZDI-26-786: NoMachine nxwebrunner Heap-based).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Critical9.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.58%
- Remediation
- Not established
- Affected products
- See sources for product scope
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.8. The following CVEs are assigned: CVE-2026-114549.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-114549
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-114549. EPSS is 0.58%. Act only if a listed version of ZDI-26-786: NoMachine nxwebrunner Heap-based is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.58%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 22, 2026 · Zero Day Initiative
Detected
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.8. The following CVEs are assigned: CVE-2026-114549.
Sources
- CVE.orgVulnerability recordCVE-2026-114549
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-114549
30-day exploitation probability 0.58%
first.org - Zero Day InitiativeCoordinated disclosureZDI-26-786
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.8. The following CVEs are assigned: CVE-2026-114549.
zerodayinitiative.com
Freshness
Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- Zero Day InitiativeNov 4, 2026
- FIRST EPSSNov 4, 2026
- CVE.orgOct 23, 2026