Vulnerability in Z.cash Zcash
CVE-2019-11636
Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.
EPSS: 0.022 (80.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Z.cash Zcash — versions 2.0.5
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-11636?
- CVE-2019-11636 is a high-severity vulnerability in Z.cash Zcash, classified under CWE-254. CVSS score: 7.5/10. Published 2019-05-01.
- How severe is CVE-2019-11636?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-11636 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.