CVE-2026-23243

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-07-14.

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

2026-03-18 10:05Z5 MO AGO

Last updated

2026-08-05 12:20Z1 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

ce15b89d129001292d3feab7d7aad73967d44aef13811b7cc93076dbcff52896

• git.kernel.orghttps://git.kernel.org/stable/c/1371ef6b1ecf3676b8942f5dfb3634fb0648128e
• git.kernel.orghttps://git.kernel.org/stable/c/362e45fd9069ffa1523f9f1633b606ebf72060d7
• git.kernel.orghttps://git.kernel.org/stable/c/6eb2919474ca105c5b13d19574e25f0ddcf19ca2
• git.kernel.orghttps://git.kernel.org/stable/c/a6a3e4af10993cb9e4b8f0548680aba0ab5f3b0d
• git.kernel.orghttps://git.kernel.org/stable/c/9c80d688f402539dfc8f336de1380d6b4ee14316
• git.kernel.orghttps://git.kernel.org/stable/c/205955f29c26330b1dc7fdeadd5bb97c38e26f56
• git.kernel.orghttps://git.kernel.org/stable/c/52ab82cc5cf8ada5c3fb6ffe8f32fdb2fc27a34b
• git.kernel.orghttps://git.kernel.org/stable/c/5551b02fdbfd85a325bb857f3a8f9c9f33397ed2
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html