Is vyper affected by CVE-2025-21607?

PyPI vyper is affected in <0.4.1.

Is CVE-2025-21607 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

high

CVE-2025-21607

Q: Is CVE-2025-21607 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

PyPI · vyper

Summary

Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecover (0x1) and Identity (0x4), the success flag of the call is not checked. As a consequence an attacker can provide a specific amount of gas to make these calls fail but let the overall execut

Severity: high
EPSS: 0.6% (p46)
Also known as: GHSA-vgf2-gvx8-xwc3, PYSEC-2025-33
Published: 2025-01-14

References

https://github.com/vyperlang/vyper/security/advisories/GHSA-vgf2-gvx8-xwc3
https://github.com/vyperlang/vyper/security/advisories/GHSA-vgf2-gvx8-xwc3
https://github.com/advisories/GHSA-vgf2-gvx8-xwc3

Related advisories

CVE-2025-27105 — medium · PyPI/vyper
CVE-2025-27104 — medium · PyPI/vyper
CVE-2025-26622 — medium · PyPI/vyper

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.