CVSS 4.0
8.7 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NCVE-2025-27611
High (8.7). EPSS 0.5% chance of exploitation in the next 30 days. Fixed in base-x 3.0.11, 4.0.1, 5.0.1.
base-x is a base encoder and decoder of any given alphabet using bitcoin style leading zero compression. Versions 4.0.0, 5.0.0, and all prior to 3.0.11, are vulnerable to attackers potentially deceiving users into sending funds to an unintended address. This issue has been patched in versions 3.0.11, 4.0.1, and 5.0.1.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1007
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xq7p-g2vc-g82p | npm | base-x | >=5.0.0 <5.0.1 | 5.0.1 |
| GHSA-xq7p-g2vc-g82p | npm | base-x | >=4.0.0 <4.0.1 | 4.0.1 |
| GHSA-xq7p-g2vc-g82p | npm | base-x | <3.0.11 | 3.0.11 |