CVE-2026-6390

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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 4.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-01.

Red Hat severity

Moderate. 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

2026-07-23 03:55Z3 MO AGO

Last updated

2026-09-01 12:37Z1 MO AGO

Reserved

2026-04-15

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.8)

CNA CVSS vector

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

Weaknesses

• CWE-134Use of Externally-Controlled Format StringBase

Data version

5.2

Document digest

3c5cad07cfc76911f6e08ed37ce40263965c4203db225f7148fdd8abb4c2167a

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-6390vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2458767https://bugzilla.redhat.com/show_bug.cgi?id=2458767issue-trackingx_refsource_REDHAT