CVE-2026-64193

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

1.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 72.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-24.

Red Hat severity

Critical. 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

2026-07-20 17:54Z3 MO AGO

Last updated

2026-07-21 18:55Z3 MO AGO

Reserved

2026-07-19

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')Variant
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

4ee05cc768683174b74a1fa8a4676f9cf78fa70864ab32dc73428c26b0213006

• www.net-dns.orghttps://www.net-dns.org/blog/#release-candidate-for-netdns-1.56
• rt.cpan.orghttps://rt.cpan.org/Ticket/Display.html?id=179945issue-tracking
• metacpan.orghttps://metacpan.org/release/NLNETLABS/Net-DNS-1.55_01/changesrelease-notes
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/07/20/12