Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-29255

19
FAUCET Score

CVE-2022-29255 affects Vyper, a Pythonic Smart Contract Language, specifically versions prior to 0.3.4. The vulnerability arises when an external contract call with no return value leads to the contract address being evaluated twice, potentially causing incorrect outcomes in smart contracts. Rated 7.5 HIGH on CVSS, this issue has a low attack complexity and high impact on integrity, with no confidentiality or availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.3.4CPE matchmatch criteria
cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.21%
Probability of exploitation in next 30 days
EPSS Percentile
65.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0121 is in the 44th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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: 0.3.4

Vendor Advisories (1)

pipGHSA-4v9q-cgpw-cf38high

Multiple evaluation of contract address in call in vyper

Jun 6, 2022

References

github.com / vyperlang/vyper/commit/6b4d8ff185de071252feaa1c319712b2d6577f8d
PatchThird Party Advisory
github.com / vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38
ExploitMitigationThird Party Advisory