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CVE-2019-7167

25
FAUCET Score

CVE-2019-7167 describes a critical counterfeiting vulnerability in Zcash prior to the Sapling network upgrade. A flaw in the key-generation process allowed a malicious actor to bypass consistency checks, enabling the creation of fraudulent transactions that the Sprout zk-SNARK verifier would incorrectly accept as valid. Rated 7.5 HIGH, this vulnerability has a network attack vector with low complexity, posing a significant integrity risk. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.1CPE matchmatch criteria
cpe:2.3:a:z.cash:zcash:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 57th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

fortune.com / 2019/02/05/zcash-vulnerability-cryptocurrency
Press/Media CoverageThird Party Advisory
github.com / JinBean/CVE-Extension
z.cash / blog/zcash-counterfeiting-vulnerability-successfully-remediated
Vendor Advisory