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Fencer Vulns
high 7.5

CVE-2020-19765 json

An issue in the noReentrance() modifier of the Ethereum-based contract Accounting 1.0 allows attackers to carry out a reentrancy attack.

published 2021-09-07 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-11663

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

An issue in the noReentrance() modifier of the Ethereum-based contract Accounting 1.0 allows attackers to carry out a reentrancy attack.

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/OSUPlayer/CVEs/blob/master/Reentrancy/2019-07-09-01.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.