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Fencer Vulns
high 7.3

CVE-2023-5521 json

Incorrect Authorization in tiann/kernelsu

published 2023-10-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-57834

cvss
7.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Incorrect Authorization in GitHub repository tiann/kernelsu prior to v0.6.9.

Patch / fix

  • tiann tiann/kernelsu v0.6.9
  • tiann kernelsu 0.6.9

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/d438eff7-4e24-45e0-bc75-d3a5b3ab2ea1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • tiann tiann/kernelsu
  • tiann kernelsu

Classification

Weakness

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.