How severe is CVE-2026-9497?

CVE-2026-9497 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-9497 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-9497?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-9497 have an EU (EUVD) identifier?

Yes. CVE-2026-9497 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31730.

When was CVE-2026-9497 published?

CVE-2026-9497 was published on 2026-05-25 and last updated on 2026-06-17.

CVE-2026-9497

CVE-2026-9497 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31730
Weakness: CWE-20
Published: 2026-05-25
Last modified: 2026-06-17

Description

A flaw has been found in changmingxie tcc-transaction up to 2.1.0. This issue affects the function Fastjson.parseObject of the component Fastjson AutoType REST API. This manipulation causes deserialization. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-9497?: A flaw has been found in changmingxie tcc-transaction up to 2.1.0. This issue affects the function Fastjson.parseObject of the component Fastjson AutoType REST API. This manipulation causes deserialization. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-9497?: CVE-2026-9497 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-9497 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-9497?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-9497 have an EU (EUVD) identifier?: Yes. CVE-2026-9497 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31730.
When was CVE-2026-9497 published?: CVE-2026-9497 was published on 2026-05-25 and last updated on 2026-06-17.

References

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