CVE-2026-38422

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.81% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 54.4% of scored records. A rank, not a probability.

NVD base score

7.3 (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:L/I:L/A:L

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-05-27 00:00Z3 MO AGO

Last updated

2026-05-28 13:47Z3 MO AGO

Reserved

2026-04-06

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.3)

CNA CVSS vector

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

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant

Data version

5.2

Document digest

545a380941fcd9a48e1d85c1a53e001fd5ecb936c833e846300e5cd318db4fc9

• github.comhttps://github.com/arendst/Tasmota
• github.comhttps://github.com/arendst/Tasmota/blob/development/tasmota/tasmota_xdrv_driver/xdrv_10_scripter.ino
• github.comhttps://github.com/sermikr0/CVE-2026-38422