How severe is CVE-2019-14238?

CVE-2019-14238 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-14238 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14238?

CVE-2019-14238 primarily affects St Stm32l0 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-14238?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-14238 published?

CVE-2019-14238 was published on 2019-09-24 and last updated on 2026-06-17.

CVE-2019-14238

CVE-2019-14238 is a medium-severity vulnerability in St Stm32l0 Firmware with a CVSS 3.x base score of 6.6. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
CVSS v2: 4.6
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: St Stm32l0 Firmware
Published: 2019-09-24
Last modified: 2026-06-17

Description

On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.

Frequently asked questions

What is CVE-2019-14238?: On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.
How severe is CVE-2019-14238?: CVE-2019-14238 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-14238 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14238?: CVE-2019-14238 primarily affects St Stm32l0 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-14238?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-14238 published?: CVE-2019-14238 was published on 2019-09-24 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:st:stm32l0_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32l1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32l4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f7_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32h7_firmware:-:*:*:*:*:*:*:*

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