CVE-2017-2375

Unintended cloud storage via flawed upload prevention

Published Dec 23, 2021 · Updated Aug 5, 2024

A logic error in Call History in Apple iOS before 10.2.1 allows local users to send CallKit call-history updates to iCloud. The Call History logic fails to prevent CallKit updates from being uploaded to iCloud, retaining data outside the device when it should remain local. The behavior requires a local low-privileged context and affects the placement of CallKit call-history updates rather than device availability.

CVSS severity3.3
Low
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A logic error in Call History in Apple iOS before 10.2.1 allows local users to send CallKit call-history updates to iCloud. The Call History logic fails to prevent CallKit updates from being uploaded to iCloud, retaining data outside the device when it should remain local. The behavior requires a local low-privileged context and affects the placement of CallKit call-history updates rather than device availability.

The record

CVE
CVE-2017-2375
Published
Dec 23, 2021
Updated
Aug 5, 2024
Vendor
Apple
Product
iOS
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record 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=unspecified <10.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · iOSversion=unspecified <10.2

Published CVSS scores

3.3OSVCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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