Search/CVE-2025-41256
● CVE — High

CVE-2025-41256

DiscoveredJun 25, 2025UpdatedApr 15, 2026

Cyberduck and Mountain Duck improper handle TLS certificate pinning for untrusted certificates (e.g., self-signed), since the certificate fingerprint is stored as SHA-1, although SHA-1 is considered weak. This issue affects Cyberduck: through 9.1.6; Mountain Duck: through 4.17.5.

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CVSS v3.1
7.4 HIGH
EPSS
0.13%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 27, 2026
▲ 0.02pp
0.11% → 0.13% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityNONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Connections
1 relationships
Timeline
disclosure → media coverage
Jun 25, 2025
Disclosure — published as a CVE record. · last revised by NVD Apr 15, 2026