How severe is CVE-2017-14032?

CVE-2017-14032 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-14032 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14032?

CVE-2017-14032 primarily affects Arm Mbed Tls. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-14032?

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

When was CVE-2017-14032 published?

CVE-2017-14032 was published on 2017-08-30 and last updated on 2026-06-17.

CVE-2017-14032

CVE-2017-14032 is a high-severity vulnerability in Arm Mbed Tls with a CVSS 3.x base score of 8.1. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Arm Mbed Tls
Published: 2017-08-30
Last modified: 2026-06-17

Description

ARM mbed TLS before 1.3.21 and 2.x before 2.1.9, if optional authentication is configured, allows remote attackers to bypass peer authentication via an X.509 certificate chain with many intermediates. NOTE: although mbed TLS was formerly known as PolarSSL, the releases shipped with the PolarSSL name are not affected.

Frequently asked questions

What is CVE-2017-14032?: ARM mbed TLS before 1.3.21 and 2.x before 2.1.9, if optional authentication is configured, allows remote attackers to bypass peer authentication via an X.509 certificate chain with many intermediates. NOTE: although mbed TLS was formerly known as PolarSSL, the releases shipped with the PolarSSL name are not affected.
How severe is CVE-2017-14032?: CVE-2017-14032 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-14032 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14032?: CVE-2017-14032 primarily affects Arm Mbed Tls. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-14032?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-14032 published?: CVE-2017-14032 was published on 2017-08-30 and last updated on 2026-06-17.

References

Affected products (30)

cpe:2.3:a:arm:mbed_tls:1.3.19:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:1.3.21:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.7:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.9:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.10:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.11:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.12:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.13:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.14:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.15:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.16:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.17:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.18:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:1.3.20:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.4:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.5:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.6:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.1.8:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:2.5.1:*:*:*:*:*:*:*

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