What is CVE-2019-1010296?

CVE-2019-1010296 is a critical-severity vulnerability in Linaro/op-Tee Op-Tee, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2019-07-15.

How severe is CVE-2019-1010296?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Linaro/op-Tee Op-Tee

CVE-2019-1010296

Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Code execution in context of TEE core (kernel). The component is: optee_os. The fixed version is: 3.4.0 and later.

Vulnerability class: Integer Overflow

Published 2019-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (85.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Linaro/op-Tee Op-Tee — versions 3.3.0 and earlier [fixed: 3.4.0 and later]
Trustedfirmware Op-Tee

Weakness classification (CWE)

References

github.com/OP-TEE/optee_os/commit/b60e1cee406a1ff521145ab9534370dfb85dd592 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-1010296?: CVE-2019-1010296 is a critical-severity vulnerability in Linaro/op-Tee Op-Tee, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2019-07-15.
How severe is CVE-2019-1010296?: Critical severity. CVSS v3 base score is 9.8 out of 10.