How severe is CVE-2019-25052?

CVE-2019-25052 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2019-25052 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25052?

CVE-2019-25052 affects Trustedfirmware Op-tee. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25052?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-25052 published?

CVE-2019-25052 was published on 2021-08-11 and last updated on 2026-06-17.

CVE-2019-25052

CVE-2019-25052 is a critical-severity vulnerability in Trustedfirmware Op-tee with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Trustedfirmware Op-tee
Published: 2021-08-11
Last modified: 2026-06-17

Description

In Linaro OP-TEE before 3.7.0, by using inconsistent or malformed data, it is possible to call update and final cryptographic functions directly, causing a crash that could leak sensitive information.

Frequently asked questions

What is CVE-2019-25052?: In Linaro OP-TEE before 3.7.0, by using inconsistent or malformed data, it is possible to call update and final cryptographic functions directly, causing a crash that could leak sensitive information.
How severe is CVE-2019-25052?: CVE-2019-25052 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2019-25052 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25052?: CVE-2019-25052 affects Trustedfirmware Op-tee. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25052?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-25052 published?: CVE-2019-25052 was published on 2021-08-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*

More vulnerabilities in Trustedfirmware Op-tee

CVE-2019-1010292 — Critical (CVSS 9.8): Linaro/OP-TEE OP-TEE Prior to version v3.4.0 is affected by: Boundary checks. The impact is: This could lead to…
CVE-2019-1010298 — Critical (CVSS 9.8): Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Code execution in the context of…
CVE-2019-1010297 — Critical (CVSS 9.8): Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Execution of code in TEE core…
CVE-2019-1010296 — Critical (CVSS 9.8): Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Code execution in context of TEE…
CVE-2019-1010295 — Critical (CVSS 9.8): Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Memory corruption and disclosure…
CVE-2019-1010293 — Critical (CVSS 9.8): Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Boundary crossing. The impact is: Memory corruption of the TEE…

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