CVE-2026-33317

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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 8.0% of scored records. A rank, not a probability.

NVD base score

8.7 (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:C/C:H/I:H/A:L

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-26.

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

2026-04-24 02:20Z6 MO AGO

Last updated

2026-04-24 18:18Z6 MO AGO

Reserved

2026-03-18

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

6b9f5697c1468beb57f1ba5ea33b1bfa4717c820d304f11cddb56242d91310c0

• github.comhttps://github.com/OP-TEE/optee_os/security/advisories/GHSA-8cqw-mg7v-c9p9x_refsource_CONFIRM
• github.comhttps://github.com/OP-TEE/optee_os/commit/149e8d7ecc4ef8bb00ab4a37fd2ccede6d79e1cax_refsource_MISC
• github.comhttps://github.com/OP-TEE/optee_os/commit/16926d5a46934c46e6656246b4fc18385a246900x_refsource_MISC
• github.comhttps://github.com/OP-TEE/optee_os/commit/e031c4e562023fd9f199e39fd2e85797e4cbdca9x_refsource_MISC