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Vulnerabilities

Vulnerability · CVE-2025-31919

Deserialization of Untrusted Data vulnerability in themeton Spare allows Object Injection.

Published Jun 17, 2025 · catalog updated Apr 28, 2026 · Spare

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-31919. EPSS is 0.54%. Act only if a listed version of Spare is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.54%
Remediation
Advisory link
Affected products
vendor themeton Spare n/a ≤1.7

Deserialization of Untrusted Data vulnerability in themeton Spare allows Object Injection. This issue affects Spare: from n/a through 1.7.

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 themeton Spare n/a ≤1.7n/a ≤1.7

How to fix CVE-2025-31919

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-2025-31919. EPSS is 0.54%. Act only if a listed version of Spare is installed.

Which versions are affected?

Compare what you have installed with themeton Spare n/a ≤1.7 n/a ≤1.7. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.54%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 17, 2025 · EUVD

    Detected

    Deserialization of Untrusted Data vulnerability in themeton Spare allows Object Injection. This issue affects Spare: from n/a through 1.7.

  2. Apr 28, 2026 · EUVD

    Updated

    Deserialization of Untrusted Data vulnerability in themeton Spare allows Object Injection. This issue affects Spare: from n/a through 1.7.

Sources

  • CVE.orgVulnerability recordCVE-2025-31919

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-31919

    30-day exploitation probability 0.54%

    first.org
  • EUVDVulnerability recordEUVD-2025-18547

    Deserialization of Untrusted Data vulnerability in themeton Spare allows Object Injection. This issue affects Spare: from n/a through 1.7.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 24, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 18, 2026