Vulnerability · CVE-2026-21128
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung…
Published Oct 12, 2026 · catalog updated Oct 15, 2026 · the affected product
Check if you run it
No confirmed exploitation is on record for CVE-2026-21128. EPSS is 0.12%. Act only if a listed version of the affected product is installed.
Gaps on this record
- No plain product name is stored. The page cannot tell you which product to check.
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.12%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung Checkout privileges.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-21128
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-21128. EPSS is 0.12%. Act only if a listed version of the affected product is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-20: Improper Input Validation. EPSS 0.12%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 12, 2026 · NIST NVD
Detected
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung Checkout privileges.
Oct 14, 2026 · NIST NVD
Updated
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung Checkout privileges.
Oct 15, 2026 · NIST NVD
Updated
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung Checkout privileges.
Sources
- CVE.orgVulnerability recordCVE-2026-21128
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-21128
30-day exploitation probability 0.1%
first.org - NIST NVDVulnerability recordCVE-2026-21128
Improper input validation in CreditCardRegisterActivity of Samsung Checkout prior to version 5.1.03.1 allows local attackers to launch arbitrary activity with Samsung Checkout privileges.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.