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CVE-2017-7832
The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be…
Medium5.3EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.5% · top 26% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
- Domain spoofing through use of dotless 'i' character followed by accent markers
- CWE-20 (opens in a new tab)All about CWE-20 and its CVEs
Affected products
References (4)
- https://www.mozilla.org/security/advisories/mfsa2017-24/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 101832 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1039803 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1408782 (opens in a new tab)x_refsource_CONFIRMx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-7832)Record last updated .