CVE-2026-4647

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. 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

2026-03-23 13:37Z5 MO AGO

Last updated

2026-09-01 11:59Z3 DAYS AGO

Reserved

2026-03-23

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

7fdf584e5bac81dcb526c0239d4d55c1a5638063d5243333ad98abc454c8b0c5

• access.redhat.comRHSA-2026:33527https://access.redhat.com/errata/RHSA-2026:33527vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:39022https://access.redhat.com/errata/RHSA-2026:39022vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-4647vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2450302https://bugzilla.redhat.com/show_bug.cgi?id=2450302issue-trackingx_refsource_REDHAT
• sourceware.orghttps://sourceware.org/bugzilla/show_bug.cgi?id=33919