CVE-2018-17980
NoMachine before 5.3.27 and 6.x before 6.3.6 allows attackers to gain privileges via a Trojan horse wintab32.dll file located in the same directory as a .nxs file, as demonstrated by a scenario where the .nxs file and the DLL are in the current working…
Does this matter?
A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 4.6%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
NoMachine before 5.3.27 and 6.x before 6.3.6 allows attackers to gain privileges via a Trojan horse wintab32.dll file located in the same directory as a .nxs file, as demonstrated by a scenario where the .nxs file and the DLL are in the current working directory, and the Trojan horse code is executed. (The directory could, in general, be on a local filesystem or a network share.).
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 4.55% probability · 92th percentile
- Public exploits
- 1 in Exploit-DB · first 15 October 2018
- CISA KEV
- Not listed
- Weakness
- CWE-426
- Affected
- nomachine/nomachine
- Source
- cve@mitre.org
EPSS moved from 6.1% on 21 September 2026 to 4.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://hyp3rlinx.altervista.org/advisories/NOMACHINE-TROJAN-FILE-REMOTE-CODE-EXECUTION.txtExploit, Third Party Advisory
- http://packetstormsecurity.com/files/149784/NoMachine-5.3.26-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/45611/Exploit, Third Party Advisory, VDB Entry
- https://www.nomachine.com/TR10P08887Vendor Advisory
- http://hyp3rlinx.altervista.org/advisories/NOMACHINE-TROJAN-FILE-REMOTE-CODE-EXECUTION.txtExploit, Third Party Advisory
- http://packetstormsecurity.com/files/149784/NoMachine-5.3.26-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/45611/Exploit, Third Party Advisory, VDB Entry
- https://www.nomachine.com/TR10P08887Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.