How severe is CVE-2019-16992?

CVE-2019-16992 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 high, integrity none, and availability none.

Is CVE-2019-16992 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16992?

CVE-2019-16992 affects Keybase. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16992?

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-2019-16992 published?

CVE-2019-16992 was published on 2019-09-30 and last updated on 2026-06-17.

CVE-2019-16992

CVE-2019-16992 is a high-severity vulnerability in Keybase 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-347.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Keybase
Published: 2019-09-30
Last modified: 2026-06-17

Description

The Keybase app 2.13.2 for iOS provides potentially insufficient notice that it is employing a user's private key to sign a certain cryptocurrency attestation (that an address at keybase.io can be used for Stellar payments to the user), which might be incompatible with a user's personal position on the semantics of an attestation.

Frequently asked questions

What is CVE-2019-16992?: The Keybase app 2.13.2 for iOS provides potentially insufficient notice that it is employing a user's private key to sign a certain cryptocurrency attestation (that an address at keybase.io can be used for Stellar payments to the user), which might be incompatible with a user's personal position on the semantics of an attestation.
How severe is CVE-2019-16992?: CVE-2019-16992 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 high, integrity none, and availability none.
Is CVE-2019-16992 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16992?: CVE-2019-16992 affects Keybase. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16992?: 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-2019-16992 published?: CVE-2019-16992 was published on 2019-09-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:keybase:keybase:2.13.2:*:*:*:*:iphone_os:*:*

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