Nanosystems Supremo for Windows and macOS before 5.0.2.3874 contains an improper certificate validation vulnerability
Source GCVE Database
Not known to be exploited · CVSS 7.6 High : upgrade to 5.0.2.3874 soon.
Data as of 3 Nov 2026, 19:33 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 7.6 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 6.8 |
- Patch
- Available – fixed in 5.0.2.3874
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Upgrade Supremo to 5.0.2.3874.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NanosystemsSupremo | Affected
| Fixed in
|
AI-suggested
Users should upgrade Nanosystems Supremo to version 5.0.2.3874 or later, where this certificate validation vulnerability is fixed. Since the vendor advisory or patch links are not provided, confirm the availability of this version from official sources and apply the update promptly to mitigate the risk.
Description
Nanosystems Supremo versions for Windows and macOS prior to 5.0.2.3874 have an improper certificate validation vulnerability. This flaw allows attackers on the same network to intercept and relay TLS connections by using self-signed certificates. Exploitation can lead to exposure of sensitive data such as usernames, SHA-256 password hashes, and license codes.
References
- nvd.nist.gov/vuln/detail/CVE-2026-121624 (opens in a new tab)
- pusi77.eu.org/blog/2026-11-03-supremo-tls-cve (opens in a new tab)
- supremocontrol.com (opens in a new tab)
- supremocontrol.com/changelog (opens in a new tab)
- vulncheck.com/advisories/nanosystems-supremo-before-5.0.2.3874-improper-tls-certificate-validation (opens in a new tab)