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Fencer Vulns
medium 5.5

CVE-2017-13909 json

An issue existed in the storage of sensitive tokens.

published 2021-12-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2017-5424

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

An issue existed in the storage of sensitive tokens. This issue was addressed by placing the tokens in Keychain. This issue is fixed in macOS High Sierra 10.13. A local attacker may gain access to iCloud authentication tokens.

Patch / fix

  • Apple macOS 10.13

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Apple macOS

Classification

Weakness
  • CWE-922 Insecure Storage of Sensitive Information

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.