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CVE-2025-20889· NVD / CVE Program· CNA SamsungMobile

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

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.

MediumCVSS 5.5 · v3.1—No exploit No fix recorded
Published
Feb 4, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 3th percentile
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Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · SamsungMobile
5.3
0.2 point gap

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
samsungandroid

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • samsung android12.0
  • samsung android13.0
  • samsung android14.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (SamsungMobile). Independent of NVD's CPE analysis and usually ahead of it.

  • Samsung Mobile Samsung Mobile Devices

    • SMR Jan-2025 Release in Android 12, 13, 14not affected

Same product

samsung: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-21042Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.KEV
    79This week
  • CVE-2025-21043Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.KEV
    70This week
  • CVE-2021-25487Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it resKEV
    61This week
  • CVE-2021-25337Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to readKEV
    59Plan
  • CVE-2021-25372An improper boundary check in DSP driver prior to SMR Mar-2021 Release 1 allows out of bounds memory access.KEV
    56Plan
  • CVE-2021-25371A vulnerability in DSP driver prior to SMR Mar-2021 Release 1 allows attackers load arbitrary ELF libraries inside DSP.KEV
    56Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-21042220 days apartOut-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.KEV
    79This week
  • CVE-2025-21043220 days apartOut-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.KEV
    70This week
  • CVE-2024-4941563 days apartOut-of-bound write in libsaped.so prior to SMR Dec-2024 Release 1 allows remote attackers to execute arbitrary code.
    39Monitor
  • CVE-2024-34665119 days apartOut-of-bounds write in parsing h.264 format in librtppayload.so prior to SMR Oct-2024 Release 1 allows remote attackers to execute arbitrary
    35Monitor
  • CVE-2024-34666119 days apartOut-of-bounds write in parsing h.264 format in a specific mode in librtppayload.so prior to SMR Oct-2024 Release 1 allows remote attackers t
    35Monitor
  • CVE-2024-34667119 days apartOut-of-bounds write in parsing h.265 format in librtppayload.so prior to SMR Oct-2024 Release 1 allows remote attackers to execute arbitrary
    35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records