High severity · published Jul 8, 2025
CVE-2025-21006
Out-of-bounds write in handling of macro blocks for MPEG4 codec in libsavsvc.so prior to Android 15 allows local attackers to write out-of-bounds memory
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
Out-of-bounds write in handling of macro blocks for MPEG4 codec in libsavsvc.so prior to Android 15 allows local attackers to write out-of-bounds memory.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
libsavsvc.so · Samsung Mobile
All versions, or not specified · source: vendor
AN
Android · Samsung
before 15.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-21006
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-21006
Vendor Advisory
https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=07
More from libsavsvc.so
5.5
CVE-2025-21009
Out-of-bounds read in decoding malformed frame header in libsavsvc.so prior to Android 15 allows local attackers to cause memory corruption
5.5
CVE-2025-21008
Out-of-bounds read in decoding frame header in libsavsvc.so prior to Android 15 allows local attackers to cause memory corruption
5.5
CVE-2025-21007
Out-of-bounds write in accessing uninitialized memory in libsavsvc.so prior to Android 15 allows local attackers to cause memory corruption