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NVD / CVE Program· CNA SamsungMobile

CVE-2026-21010: Improper input validation in Retail Mode prior to SMR Apr-2026 Release 1 allows local attackers to trigger privileged functions.

HighCVSS 7.8 · v3.1—Proof of concept No fix recorded

Noroxi assessment

Priority: Monitor (action score 31/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.10% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Published
Apr 13, 2026
Updated
Oct 26, 2026
EPSS
0.1% · 1th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · SamsungMobile
6.6
1.2 point gap

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

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

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-21010

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
samsungandroid

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 Apr-2026 Release in Android 14, 15, 16 and laternot affected · semver

Affected versions

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

  • samsung android14.0
  • samsung android15.0
  • samsung android16.0

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
    80Now
  • 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…KEV
    61This week

Published before and after this one in the same product

  • ← EarlierCVE-2026-21008Apr 13, 2026 · Exposure of sensitive information in S Share prior to SMR Apr-2026 Release 1 allows adjacent attacker to access sensitive information.
    20Monitor
  • ← EarlierCVE-2026-21009Apr 13, 2026 · Improper check for exceptional conditions in Recents prior to SMR Apr-2026 Release 1 allows physical attacker to bypass App Pinning.
    16Monitor
  • Later →CVE-2026-21011Apr 13, 2026 · Incorrect privilege assignment in Bluetooth in Maintenance mode prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Extend…
    21Monitor

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

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:12026-08-04

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.

  1. Published
  2. First PoC+113 d
  3. TodayNov 13, 2026+214 d

Variant candidates

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

  • CVE-2026-21101149 days apartImproper input validation in DualDAR driver prior to SMR Sep-2026 Release 1 allows local privileged attackers to potentially execute…
    33Monitor
  • CVE-2023-21480222 days apartImproper input validation vulnerability in CertByte prior to SMR Apr-2023 Release 1 allows local attackers to launch privileged activities.
    31Monitor
  • CVE-2026-2098068 days apartImproper input validation in PACM prior to SMR Feb-2026 Release 1 allows physical attacker to execute arbitrary commands.
    28Monitor
  • CVE-2024-49401524 days apartImproper input validation in Settings Suggestions prior to SMR Nov-2024 Release 1 allows local attackers to launch privileged activities.
    28Monitor
  • CVE-2026-21058119 days apartImproper input validation in Samsung Contacts prior to SMR Aug-2026 Release 1 allows local attackers to delete file with Samsung Contacts'…
    27Monitor
  • CVE-2026-21089149 days apartImproper input validation in removing style tag in libsubextractor.so prior to SMR Sep-2026 Release 1 allows local attackers to write…
    27Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

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

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.

References

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

All records