Not rated
CVE-2017-5383 URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display,…
Description
URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display, allowing for domain name spoofing attacks in the location bar. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Thunderbird 45.7 | earliest → < 45.7 | 45.7 |
| Firefox ESR 45.7 | earliest → < 45.7 | 45.7 |
| Firefox 51 | earliest → < 51 | 51 |
Other CVEs of Thunderbird
The 1713 CVEs of Thunderbird →
CVE-2026-118180
Matrix homeserver could redirect the chat session to a local file or network share
7.5
High
CVE-2026-118179
Request forgery via news: links
8.8
High
CVE-2026-118177
Calendar discovery accepted local file and remote network share locations
9.1
Critical
CVE-2026-118178
RSS feed could redirect its subscription to a local file or network share
5.7
Medium