Answer in brief
CVE-2023-42444 records a High severity (CVSS 8.6) vulnerability in phonenumber: panic on parsing crafted RF3966 phonenumber inputs. The current sources do not mark it as known exploited. The current feed maps phonenumber (crates.io). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps phonenumber (crates.io). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| phonenumbercrates.io | >=0.0.0-0 <0.2.5 >=0.3.0 <0.3.3 | 0.2.5, 0.3.3 |
Published upstream
Sep 19, 2023
Evidence: source:osv:source_dates:source-dates:recordSource modified
Oct 12, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Oct 12, 2026
### Impact 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 over the network, specifically the string `.;phone-context=`. ### Patches Patches will be published as version `0.3.3+8.13.9` and backported as `0.2.5+8.11.3`.
Quoted source text, attributed separately from HOL analysis.