CVE-2026-42015

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 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

0.73% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 51.5% of scored records. A rank, not a probability.

NVD base score

5.3 (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:N/I:N/A:L

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 12:01Z3 DAYS AGO

Reserved

2026-04-23

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-193Off-by-one ErrorBase

Data version

5.2

Document digest

a5e829fc34e92305b98cc96971df2af0c08092a3ee14dfd55667f9a1d1eb01a1

• 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-2026-42015vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2467678https://bugzilla.redhat.com/show_bug.cgi?id=2467678issue-trackingx_refsource_REDHAT
• www.gnutls.orghttps://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-11