HIGH
CVE-2026-4396
CWE-295Published: March 18, 2026· Updated: Mar 19, 2026
8.3
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:0.7th
Official Description
Improper certificate validation in Devolutions Hub Reporting Service
2025.3.1.1 and earlier allows a network attacker to perform a
man-in-the-middle attack via disabled TLS certificate verification.
Technical Analysis
CVE-2026-4396 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.3.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
All References (1)
Quick Facts
CVE IDCVE-2026-4396
CVSS Score8.3 / 10
SeverityHIGH
WeaknessCWE-295
CISA KEVNo
EPSS (30d)0.01%
PublishedMar 18, 2026
Related CVEs (CWE-295)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-4396 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.