CVE-2025-26622

Name: CVE-2025-26622
Creator: NVD / NIST
Published: 2025-02-21T22:15:13.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.3/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2025-26622 is a low-severity vulnerability rated 2.3/10 on the CVSS scale. vyper is a Pythonic Smart Contract Language for the EVM. Vyper `sqrt()` builtin uses the babylonian method to calculate square roots of decimals. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

vyper is a Pythonic Smart Contract Language for the EVM. Vyper `sqrt()` builtin uses the babylonian method to calculate square roots of decimals. Unfortunately, improper handling of the oscillating final states may lead to sqrt incorrectly returning rounded up results. This issue is being addressed and a fix is expected in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.1

7.5/10

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

CVSS 4.0

2.3/10

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.29%

21.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-682

Affected Software

Vendor	Product	Versions
Vyperlang	Vyper	< 0.4.1

References

https://github.com/vyperlang/vyper/pull/4486Issue Tracking, Patch
https://github.com/vyperlang/vyper/security/advisories/GHSA-2p94-8669-xg86Vendor Advisory

Timeline

Published: Feb 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-26622?

How severe is CVE-2025-26622?

CVE-2025-26622 has a CVSS score of 2.3/10 (LOW severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2025-26622?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-26622?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST