CVE-2026-116081 | BDVDB-2026-404776 Detail

FenrirSleipnir Mobile for iPhone / iPad

Description#

Sleipnir Mobile for iPhone / iPad and Sleipnir Mobile for iPhone / iPad Black Edition provided by Fenrir Inc. are vulnerable to improper certificate verification. A man-in-the-middle attack may allow an attacker to eavesdrop on an encrypted communication.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

CWE-295 Improper certificate validation

References#

Exploit#

No public exploit known

History#

Version 12026-11-11Record published in the CVE List.

Published

Published: 2026-11-11
Last modified: 2026-11-11

Vendor information

Vendor: Fenrir
Product: Sleipnir Mobile for iPhone / iPad

All Fenrir vulnerabilities

Score

4.2 Medium

EPSS

Not available

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= v4.15.1
Fixed
Not stated

Scoring System

CVSS v4.0

2.3 Low

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	Present
Privileges Required	None
User Interaction	Passive
Vulnerable System Confidentiality	Low
Vulnerable System Integrity	Low
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

4.2 Medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).