CVE-2026-42012

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 ImpactpartialSuccessful exploitation gives limited 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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2026-05-26 21:29Z3 MO AGO

Last updated

2026-09-01 12:01Z2 DAYS AGO

Reserved

2026-04-23

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.2

Document digest

38936b2f7be8a6dea086967b257352c7ce2c80293044f20f62e486a034737221

• access.redhat.comRHSA-2026:13274https://access.redhat.com/errata/RHSA-2026:13274vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:20611https://access.redhat.com/errata/RHSA-2026:20611vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:20612https://access.redhat.com/errata/RHSA-2026:20612vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:20613https://access.redhat.com/errata/RHSA-2026:20613vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:26319https://access.redhat.com/errata/RHSA-2026:26319vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:26409https://access.redhat.com/errata/RHSA-2026:26409vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:29197https://access.redhat.com/errata/RHSA-2026:29197vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:30004https://access.redhat.com/errata/RHSA-2026:30004vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:30849https://access.redhat.com/errata/RHSA-2026:30849vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:30850https://access.redhat.com/errata/RHSA-2026:30850vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:32962https://access.redhat.com/errata/RHSA-2026:32962vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:33125https://access.redhat.com/errata/RHSA-2026:33125vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:41921https://access.redhat.com/errata/RHSA-2026:41921vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:43575https://access.redhat.com/errata/RHSA-2026:43575vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:58981https://access.redhat.com/errata/RHSA-2026:58981vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-42012vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2467441https://bugzilla.redhat.com/show_bug.cgi?id=2467441issue-trackingx_refsource_REDHAT
• www.gnutls.orghttps://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-7