How severe is CVE-2026-66081?

CVE-2026-66081 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2026-66081 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-66081?

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

When was CVE-2026-66081 published?

CVE-2026-66081 was published on 2026-10-02.

CVE-2026-66081

CVE-2026-66081 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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-824.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-824
Published: 2026-10-02
Last modified: 2026-10-02

Description

Access of Uninitialized Pointer vulnerability in Apache Thrift c_glib bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Frequently asked questions

What is CVE-2026-66081?: Access of Uninitialized Pointer vulnerability in Apache Thrift c_glib bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
How severe is CVE-2026-66081?: CVE-2026-66081 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2026-66081 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-66081?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-66081 published?: CVE-2026-66081 was published on 2026-10-02.

References

Other CWE-824 vulnerabilities

CVE-2009-0846 — Critical (CVSS 10.0): The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT…
CVE-2007-2442 — Critical (CVSS 10.0): The gssrpc__svcauth_gssapi function in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote…
CVE-2026-100788 — Critical (CVSS 9.8): Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4,…
CVE-2026-2805 — Critical (CVSS 9.8): Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2785 — Critical (CVSS 9.8): Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8,…
CVE-2022-46280 — Critical (CVSS 9.8): A use of uninitialized pointer vulnerability exists in the PQS format pFormat functionality of Open Babel 3.1.1 and…

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