CVE-2025-32898

Device impersonation via truncated verification code

Published Dec 5, 2025 · Updated Dec 5, 2025

Insufficient verification-code entropy in KDE Connect protocol before 2025-04-18 allows adjacent attackers to impersonate devices. Pairing truncates a value derived from the devices' public keys to eight characters and reuses the same code between the same devices, enabling offline key-pair search. An attacker on the same network must find a colliding key pair and have it accepted during pairing, gaining the trust assigned to the impersonated device.

CVSS severity4.7
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient verification-code entropy in KDE Connect protocol before 2025-04-18 allows adjacent attackers to impersonate devices. Pairing truncates a value derived from the devices' public keys to eight characters and reuses the same code between the same devices, enabling offline key-pair search. An attacker on the same network must find a colliding key pair and have it accepted during pairing, gaining the trust assigned to the impersonated device.

The record

CVE
CVE-2025-32898
Published
Dec 5, 2025
Updated
Dec 5, 2025
Vendor
KDE
Product
KDE Connect protocol
Classifications
CWE-331, CWE-222, CAPEC-59
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2025-04-18

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

KDE · KDE Connect protocolversion=0 <2025-04-18

Published CVSS scores

4.7MITRECVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-331Insufficient Entropy
CWE-222Truncation of Security-relevant Information
CAPEC-59Session Credential Falsification through Prediction

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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