Improper Certificate Validation
Source GCVE Database
Not known to be exploited · CVSS 4.8 Medium.
Data as of 30 Oct 2026, 20:25 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Sep 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 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DevolutionsServer | Affected
| Fixed in– |
AI-suggested
Until a fix is available, consider restricting network access to trusted endpoints and monitoring for unusual network activity related to synchronization and integration features.
Description
Devolutions Server versions 2026.2.16 and earlier contain an improper certificate validation vulnerability in the shared HTTP client used by synchronization and integration features. This flaw allows a network-positioned attacker to intercept and modify outbound TLS connections by presenting a spoofed or self-signed certificate.