How severe is CVE-2017-18347?

CVE-2017-18347 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-18347 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-2017-18347?

CVE-2017-18347 primarily affects St Stm32f071rb Firmware. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-18347?

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

When was CVE-2017-18347 published?

CVE-2017-18347 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2017-18347

CVE-2017-18347 is a medium-severity vulnerability in St Stm32f071rb Firmware with a CVSS 3.x base score of 4.6. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v2: 4.9
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: St Stm32f071rb Firmware
Published: 2018-09-12
Last modified: 2026-06-17

Description

Incorrect access control in RDP Level 1 on STMicroelectronics STM32F0 series devices allows physically present attackers to extract the device's protected firmware via a special sequence of Serial Wire Debug (SWD) commands because there is a race condition between full initialization of the SWD interface and the setup of flash protection.

Frequently asked questions

What is CVE-2017-18347?: Incorrect access control in RDP Level 1 on STMicroelectronics STM32F0 series devices allows physically present attackers to extract the device's protected firmware via a special sequence of Serial Wire Debug (SWD) commands because there is a race condition between full initialization of the SWD interface and the setup of flash protection.
How severe is CVE-2017-18347?: CVE-2017-18347 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-18347 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-2017-18347?: CVE-2017-18347 primarily affects St Stm32f071rb Firmware. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-18347?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18347 published?: CVE-2017-18347 was published on 2018-09-12 and last updated on 2026-06-17.

References

Affected products (72)

cpe:2.3:o:st:stm32f071rb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f071v8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f071vb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f072c8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f072cb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f072r8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f072rb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f072v8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f072vb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f078cb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f078rb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f078vb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f091cb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f091cc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f091rb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f091rc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f091vb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f091vc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f098cc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f098rc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f098vc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f070c6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f070cb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f070f6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f070rb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f071c8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f071cb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051t8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f058c8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f058r8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f058t8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051k4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051k6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051k8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051r4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051r6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f051r8_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f042t6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f048c6_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:st:stm32f048g6_firmware:-:*:*:*:*:*:*:*

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