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Fencer Vulns
medium 5.3

CVE-2025-20889 json

Out-of-bounds read in decoding malformed bitstream for smp4vtd in libsthmbc.so prior to SMR Jan-2025 Release 1 allows local attackers to re…

published 2025-02-04 21 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2202

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

Out-of-bounds read in decoding malformed bitstream for smp4vtd in libsthmbc.so prior to SMR Jan-2025 Release 1 allows local attackers to read arbitrary memory. User interaction is required for triggering this vulnerability.

Patch / fix

  • Samsung Mobile Samsung Mobile Devices SMR Jan-2025 Release in Android 12, 13, 14

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:L
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • Samsung Mobile Samsung Mobile Devices

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.