CVE-2023-42444phonenumber panics on parsing crafted RF3966 inputs
- 8.6HighCVSS base score
- 0.87%Exploitation in 30 daysEPSS · top 41% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
phonenumber is a library for parsing, formatting and validating international phone numbers. Prior to versions `0.3.3+8.13.9` and `0.2.5+8.11.3`, 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=`. Versions `0.3.3+8.13.9` and `0.2.5+8.11.3` contain a patch for this issue. There are no known workarounds.
Timeline
ID reserved
By GitHub_M
- 11 days later
· 11 days later
Published
- 12 months later
· 12 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.87% · top 41% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.
Affected products
whisperfish · rust-phonenumber
- affected < 0.2.5+8.11.3
- affected >= 0.3.0, < 0.3.3+8.3.19
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.iophonenumberGHSA-whhr-7f2w-qqj2 (opens in a new tab)
References
References3
- https://github.com/whisperfish/rust-phonenumber/security/advisories/GHSA-whhr-7f2w-qqj2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/whisperfish/rust-phonenumber/commit/2dd44be94539c051b4dee55d1d9d349bd7bedde6 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/whisperfish/rust-phonenumber/commit/bea8e732b9cada617ede5cf51663dba183747f71 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-2608 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-whhr-7f2w-qqj2 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-42444)Record last updated .