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Vulnerabilities

Vulnerability · CVE-2026-20989

Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

Published Mar 16, 2026 · catalog updated Jun 17, 2026 · Improper verification of cryptographic

Check if you run it

No confirmed exploitation is on record for CVE-2026-20989. EPSS is 0.11%. Act only if a listed version of Improper verification of cryptographic is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Improper verification of cryptographic).
  • 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
0.11%
Remediation
Advisory link
Affected products
cpe samsung/android

Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe samsung/android16.0

How to fix CVE-2026-20989

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-2026-20989. EPSS is 0.11%. Act only if a listed version of Improper verification of cryptographic is installed.

Which versions are affected?

Compare what you have installed with 16.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-347: Improper Verification of Cryptographic Signature. EPSS 0.11%. 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.

  1. Mar 16, 2026 · NIST NVD

    Detected

    Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

Sources

  • CVE.orgVulnerability recordCVE-2026-20989

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-20989

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-20989

    Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

    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.