How severe is CVE-2021-36689?

CVE-2021-36689 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-36689 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36689?

CVE-2021-36689 affects Samourai-wallet-android Project Samourai-wallet-android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36689?

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

When was CVE-2021-36689 published?

CVE-2021-36689 was published on 2023-03-04 and last updated on 2026-06-17.

CVE-2021-36689

CVE-2021-36689 is a medium-severity vulnerability in Samourai-wallet-android Project Samourai-wallet-android with a CVSS 3.x base score of 5.5. 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-521.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-521
Affected product: Samourai-wallet-android Project Samourai-wallet-android
Published: 2023-03-04
Last modified: 2026-06-17

Description

An issue discovered in com.samourai.wallet.PinEntryActivity.java in Streetside Samourai Wallet 0.99.96i allows attackers to view sensitive information and decrypt data via a brute force attack that uses a recovered samourai.dat file. The PIN is 5 to 8 digits, which may be insufficient in this situation.

Frequently asked questions

What is CVE-2021-36689?: An issue discovered in com.samourai.wallet.PinEntryActivity.java in Streetside Samourai Wallet 0.99.96i allows attackers to view sensitive information and decrypt data via a brute force attack that uses a recovered samourai.dat file. The PIN is 5 to 8 digits, which may be insufficient in this situation.
How severe is CVE-2021-36689?: CVE-2021-36689 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-36689 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36689?: CVE-2021-36689 affects Samourai-wallet-android Project Samourai-wallet-android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36689?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36689 published?: CVE-2021-36689 was published on 2023-03-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:samourai-wallet-android_project:samourai-wallet-android:0.99.96i:*:*:*:*:android:*:*

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