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Vulnerabilities

Vulnerability · CVE-2021-47798

NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application.

Published Jan 15, 2026 · catalog updated Jan 16, 2026 · Noteburner NoteBurner

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2021-47798. EPSS is 0.43%. Act only if a listed version of Noteburner NoteBurner is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.43%
Remediation
Vendor / distro source
Affected products
vendor Noteburner NoteBurner 2.35

NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.

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.

  • vendor Noteburner NoteBurner 2.352.35

How to fix CVE-2021-47798

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-2021-47798. EPSS is 0.43%. Act only if a listed version of Noteburner NoteBurner is installed.

Which versions are affected?

Compare what you have installed with Noteburner NoteBurner 2.35 2.35. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.43%. 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. Jan 15, 2026 · EUVD

    Detected

    NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.

  2. Jan 16, 2026 · EUVD

    Updated

    NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.

Sources

  • CVE.orgVulnerability recordCVE-2021-47798

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-47798

    30-day exploitation probability 0.43%

    first.org
  • EUVDVulnerability recordEUVD-2026-3031

    NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgOct 30, 2026
  • EUVDOct 30, 2026