How severe is CVE-2025-61622?

CVE-2025-61622 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-2025-61622 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 41% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-61622?

CVE-2025-61622 affects Apache Fory. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-61622?

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-2025-61622 have an EU (EUVD) identifier?

Yes. CVE-2025-61622 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32708.

When was CVE-2025-61622 published?

CVE-2025-61622 was published on 2025-10-01 and last updated on 2026-06-17.

CVE-2025-61622

CVE-2025-61622 is a critical-severity vulnerability in Apache Fory with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 41% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 41% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32708
Weakness: CWE-502
Affected product: Apache Fory
Published: 2025-10-01
Last modified: 2026-06-17

Description

Deserialization of untrusted data in python in pyfory versions 0.12.0 through 0.12.2, or the legacy pyfury versions from 0.1.0 through 0.10.3: allows arbitrary code execution. An application is vulnerable if it reads pyfory serialized data from untrusted sources. An attacker can craft a data stream that selects pickle-fallback serializer during deserialization, leading to the execution of `pickle.loads`, which is vulnerable to remote code execution. Users are recommended to upgrade to pyfory version 0.12.3 or later, which has removed pickle fallback serializer and thus fixes this issue.

Frequently asked questions

What is CVE-2025-61622?: Deserialization of untrusted data in python in pyfory versions 0.12.0 through 0.12.2, or the legacy pyfury versions from 0.1.0 through 0.10.3: allows arbitrary code execution. An application is vulnerable if it reads pyfory serialized data from untrusted sources. An attacker can craft a data stream that selects pickle-fallback serializer during deserialization, leading to the execution of `pickle.loads`, which is vulnerable to remote code execution. Users are recommended to upgrade to pyfory version 0.12.3 or later, which has removed pickle fallback serializer and thus fixes this issue.
How severe is CVE-2025-61622?: CVE-2025-61622 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-2025-61622 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 41% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-61622?: CVE-2025-61622 affects Apache Fory. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-61622?: 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-2025-61622 have an EU (EUVD) identifier?: Yes. CVE-2025-61622 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32708.
When was CVE-2025-61622 published?: CVE-2025-61622 was published on 2025-10-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:fory:*:*:*:*:*:*:*:*

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