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CVE-2025-21042

Samsung Mobile Devices Out-of-Bounds Write

8.8 HIGHActively exploited (CISA KEV)EPSS 33.2%
  1. Published12 Sept 2025
  2. Added to CISA KEV10 Nov 2025
  3. Remediation due1 Dec 2025
Actively exploited (CISA KEV)

Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so. This vulnerability could allow remote attackers to execute arbitrary code.

Added to KEV: 10 Nov 2025Federal remediation due: 1 Dec 2025

Description

Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Samsung Android13.0 · 14.0 · 15.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-21042 being actively exploited?

Yes. CVE-2025-21042 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 10 Nov 2025.

How severe is CVE-2025-21042?

CVE-2025-21042 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 33.2% probability of exploitation.

Which products are affected by CVE-2025-21042?

Affected products include Samsung Android.

How do I fix CVE-2025-21042?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-21042 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.