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CVE-2022-24845

24
FAUCET Score

CVE-2022-24845 is a critical vulnerability affecting Vyper, a Pythonic smart contract language for the Ethereum Virtual Machine. The flaw stems from insufficient validation of return values from the <iface>.returns_int128() function, particularly in complex expressions, leading to potential misinterpretation of integer values and incorrect contract behavior. With a CVSS score of 9.8 (CRITICAL), this vulnerability is remotely exploitable with low attack complexity, allowing for high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, users are strongly advised to upgrade to Vyper v0.3.0 or later to mitigate this risk, as no workaround exists.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.3.2CPE matchmatch criteria
cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 56th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: vyperFixed in: 0.3.2

Vendor Advisories (1)

pipGHSA-j2x6-9323-fp7hhigh

Integer bounds error in Vyper

Apr 22, 2022

References

github.com / vyperlang/vyper/commit/049dbdc647b2ce838fae7c188e6bb09cf16e470b
PatchThird Party Advisory
github.com / vyperlang/vyper/security/advisories/GHSA-j2x6-9323-fp7h
ExploitPatchThird Party Advisory