CVE-2024-27094
low-risk
Published 2024-03-21
OpenZeppelin Contracts is a library for secure smart contract development. The `Base64.encode` function encodes a `bytes` input by iterating over it in chunks of 3 bytes. When this input is not a multiple of 3, the last iteration may read parts of the memory that are beyond the input buffer. The vulnerability is fixed in 5.0.2 and 4.9.6.
Do I need to act?
-
0.56% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10
Medium
NETWORK
/ HIGH complexity
Affected Products (2)
Contracts Upgradeable
Affected Vendors
References (10)
29
/ 100
low-risk
Severity
20/34 · Moderate
Exploitability
2/34 · Minimal
Exposure
7/34 · Low