What’s Vulnerable › Vulnerabilities

CVE-2019-16930

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-28 · updated 2026-06-17
• Weakness: CWE-755

Description

Zcashd in Zcash before 2.0.7-3 allows discovery of the IP address of a full node that owns a shielded address, related to mishandling of exceptions during deserialization of note plaintexts. This affects anyone who has disclosed their zaddr to a third party.

Affected products

• Z.Cash Zcash: before 2.0.7-3 — fixed in 2.0.7-3

How to fix

Upgrade to a fixed version: Z.Cash Zcash 2.0.7-3. Check the vendor advisory for mitigations.

References

• http://duke.leto.net/2019/10/01/zcash-metadata-leakage-cve-2019-16930.html
• https://github.com/zcash/zcash/commit/c1fbf8ab5d73cff5e1f45236995857c75ba4128d
• https://github.com/zcash/zcash/releases/tag/v2.0.7-3
• https://z.cash/support/security/announcements/security-announcement-2019-09-24/
• http://duke.leto.net/2019/10/01/zcash-metadata-leakage-cve-2019-16930.html
• https://github.com/zcash/zcash/commit/c1fbf8ab5d73cff5e1f45236995857c75ba4128d
• https://github.com/zcash/zcash/releases/tag/v2.0.7-3
• https://z.cash/support/security/announcements/security-announcement-2019-09-24/

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