CVE-2026-94300

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 61.0% of scored records. A rank, not a probability.

NVD base score

8.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-26.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-21 12:45Z7 DAYS AGO

Last updated

2026-10-22 23:04Z6 DAYS AGO

Reserved

2026-09-21

Assigning CNA

isc

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
• CWE-415Double FreeVariant
• CWE-366Race Condition within a ThreadBase

Data version

5.2

Document digest

57058105ce9bd4971bb693637c0c64f6b8229ecdb5984533356dea9868842337

• kb.isc.orgCVE-2026-94300https://kb.isc.org/docs/cve-2026-94300vendor-advisory
• downloads.isc.orghttps://downloads.isc.org/isc/bind9/9.20.30patch
• downloads.isc.orghttps://downloads.isc.org/isc/bind9/9.21.27patch