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CVE-2021-43171

MEDIUM
6.5
CVSS Score
Published: August 22, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorApp Lounge

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Improper verification of applications' cryptographic signatures in the /e/OS app store client App Lounge before 0.19q allows attackers in control of the application server to install malicious applications on user's systems by altering the server's API response.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

App Lounge· E Foundation
95%
v < 0.19q
Affected range stops below 0.19q, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Release Notes
Source: [email protected]
https://gitlab.e.foundation/e/os/releases/-/releases/v0.19-q#sparkles-we-embedded-other-improvements
Third Party Advisory
Source: [email protected]
https://nervuri.net/e/apps

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-347

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