How severe is CVE-2020-10876?

CVE-2020-10876 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-10876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10876?

CVE-2020-10876 affects Oklok Project Oklok. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10876?

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-2020-10876 published?

CVE-2020-10876 was published on 2020-05-04 and last updated on 2026-06-17.

CVE-2020-10876

CVE-2020-10876 is a high-severity vulnerability in Oklok Project Oklok with a CVSS 3.x base score of 7.5. 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-307.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Oklok Project Oklok
Published: 2020-05-04
Last modified: 2026-06-17

Description

The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) does not correctly implement its timeout on the four-digit verification code that is required for resetting passwords, nor does it properly restrict excessive verification attempts. This allows an attacker to brute force the four-digit verification code in order to bypass email verification and change the password of a victim account.

Frequently asked questions

What is CVE-2020-10876?: The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) does not correctly implement its timeout on the four-digit verification code that is required for resetting passwords, nor does it properly restrict excessive verification attempts. This allows an attacker to brute force the four-digit verification code in order to bypass email verification and change the password of a victim account.
How severe is CVE-2020-10876?: CVE-2020-10876 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-10876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10876?: CVE-2020-10876 affects Oklok Project Oklok. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10876?: 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-2020-10876 published?: CVE-2020-10876 was published on 2020-05-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oklok_project:oklok:3.1.1:*:*:*:*:iphone_os:*:*

More vulnerabilities in Oklok Project Oklok

CVE-2020-8790 — Critical (CVSS 9.8): The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) has weak password requirements…
CVE-2020-8791 — Medium (CVSS 6.5): The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) allows remote attackers to submit…
CVE-2020-8792 — Medium (CVSS 5.3): The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) has an information-exposure issue.…

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