CVE-2026-26158

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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 8.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-07-15.

Red Hat severity

Important. 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

2026-02-11 20:27Z8 MO AGO

Last updated

2026-07-15 01:15Z3 MO AGO

Reserved

2026-02-11

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

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

Weaknesses

• CWE-73External Control of File Name or PathBase

Data version

5.2

Document digest

76664c269c68c4ef87d3ba1ee21974f834a9990b6e3638bd1fce4750ee8cf60e

• access.redhat.comRHSA-2026:13831https://access.redhat.com/errata/RHSA-2026:13831vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-26158vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2439040https://bugzilla.redhat.com/show_bug.cgi?id=2439040issue-trackingx_refsource_REDHAT
• git.busybox.nethttps://git.busybox.net/busybox/commit/archival?id=3fb6b31c716669e12f75a2accd31bb7685b1a1cb
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-253495.html
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26158.jsonx_sadp-csaf-vex