Medium severity · published Feb 26, 2024
CVE-2024-26149
Vyper _abi_decode Memory Overflow
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. If an excessively large value is specified as the starting index for an array in `_abi_decode`, it can cause the read position to overflow. This results in the decoding of values outside the intended array bounds, potentially leading to exploitations in contracts that use arrays within `_abi_decode`. This vulnerability affects 0.3.10 and earlier versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VY
vyper · vyperlang
<= 0.3.10 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-26149
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-26149
Exploit
https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5w
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