# CVE-2024-39697

## Summary

- **CVE ID:** CVE-2024-39697
- **Severity:** HIGH
- **CVSS Score:** 8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
- **CWE:** CWE-284, CWE-392, CWE-1284, CWE-617
- **Published:** Jul 9, 2024
- **Last Modified:** Mar 13, 2026

## Description

phonenumber is a library for parsing, formatting and validating international phone numbers. Since 0.3.4, the phonenumber parsing code may panic due to a panic-guarded out-of-bounds access on the phonenumber string. In a typical deployment of rust-phonenumber, this may get triggered by feeding a maliciously crafted phonenumber, e.g. over the network, specifically strings of the form `+dwPAA;phone-context=AA`, where the "number" part potentially parses as a number larger than 2^56. This vulnerability is fixed in 0.3.6.

## Affected Products

- whisperfish — rust-phonenumber (>= 0.3.4, < 0.3.6)

## References

- [CNA](https://github.com/whisperfish/rust-phonenumber/security/advisories/GHSA-mjw4-jj88-v687)
- [CNA](https://github.com/whisperfish/rust-phonenumber/issues/69)
- [CNA](https://github.com/whisperfish/rust-phonenumber/pull/52)
- [CNA](https://github.com/whisperfish/rust-phonenumber/commit/b792151b17fc90231c232a23935830c2266f3203)
- [CNA](https://github.com/whisperfish/rust-phonenumber/commit/f69abee1481fac0d6d531407bae90020e39c6407)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.71%
- **EPSS Percentile:** 51.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._