How severe is CVE-2025-27531?

CVE-2025-27531 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-27531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27531?

CVE-2025-27531 affects Apache Inlong. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27531?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-27531 have an EU (EUVD) identifier?

Yes. CVE-2025-27531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17317.

When was CVE-2025-27531 published?

CVE-2025-27531 was published on 2025-06-06 and last updated on 2026-06-17.

CVE-2025-27531

CVE-2025-27531 is a critical-severity vulnerability in Apache Inlong with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17317
Weakness: CWE-502
Affected product: Apache Inlong
Published: 2025-06-06
Last modified: 2026-06-17

Description

Deserialization of Untrusted Data vulnerability in Apache InLong. This issue affects Apache InLong: from 1.13.0 before 2.1.0, this issue would allow an authenticated attacker to read arbitrary files by double writing the param. Users are recommended to upgrade to version 2.1.0, which fixes the issue.

Frequently asked questions

What is CVE-2025-27531?: Deserialization of Untrusted Data vulnerability in Apache InLong. This issue affects Apache InLong: from 1.13.0 before 2.1.0, this issue would allow an authenticated attacker to read arbitrary files by double writing the param. Users are recommended to upgrade to version 2.1.0, which fixes the issue.
How severe is CVE-2025-27531?: CVE-2025-27531 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-27531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27531?: CVE-2025-27531 affects Apache Inlong. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-27531 have an EU (EUVD) identifier?: Yes. CVE-2025-27531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17317.
When was CVE-2025-27531 published?: CVE-2025-27531 was published on 2025-06-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:inlong:*:*:*:*:*:*:*:*

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