CVE-2025-3029
published 2025-04-01CVE-2025-3029: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This…
PriorityP338high7.3CVSS 3.1
AVNACLPRNUINSUCLILAL
EPSS
0.33%
24.6th percentile
A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 137.0-1 (sid) | firefox 137.0-1 (sid) |
| debian | firefox-esr | < firefox 137.0-1 (sid) | firefox 137.0-1 (sid) |
| debian | thunderbird | < firefox 137.0-1 (sid) | firefox 137.0-1 (sid) |
| mozilla | firefox | < 128.9.0 | 128.9.0 |
| mozilla | firefox | < 137.0 | 137.0 |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 128.9.0 | 128.9.0 |
| mozilla | thunderbird | >= 0 < 1:128.9.0esr-1~deb11u1 | 1:128.9.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.9.0esr-1~deb12u1 | 1:128.9.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.9.0esr-1 | 1:128.9.0esr-1 |
| mozilla | thunderbird | >= 0 < 1:128.9.0esr-1 | 1:128.9.0esr-1 |
| mozilla | thunderbird | >= 129.0 < 137.0 | 137.0 |
CVSS provenance
nvdv3.17.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
osv7.3HIGH
vendor_debian7.3HIGH
vendor_redhat7.3HIGH
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GHSA
GHSA-799g-3g44-3g9m: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack
ghsa_unreviewed·2025-04-01
CVE-2025-3029 [HIGH] CWE-290 GHSA-799g-3g44-3g9m: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack
A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird ESR < 128.9.
OSV
CVE-2025-3029: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack
osv·2025-04-01·CVSS 7.3
CVE-2025-3029 [HIGH] CVE-2025-3029: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack
A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.
Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2025-07-22
CVE-2025-4083 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart thunderbird to
make all the necessary changes.
Red Hat
firefox: thunderbird: URL Bar Spoofing via non-BMP Unicode characters
vendor_redhat·2025-04-01·CVSS 7.3
CVE-2025-3029 [HIGH] CWE-346 firefox: thunderbird: URL Bar Spoofing via non-BMP Unicode characters
firefox: thunderbird: URL Bar Spoofing via non-BMP Unicode characters
A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox-flatpak-container (Red Hat Enterprise Linux 10) - Affected
Package: thunderbird-flatpak
Debian
CVE-2025-3029: firefox - A crafted URL containing specific Unicode characters could have hidden the true ...
vendor_debian·2025·CVSS 7.3
CVE-2025-3029 [HIGH] CVE-2025-3029: firefox - A crafted URL containing specific Unicode characters could have hidden the true ...
A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.
Scope: local
sid: resolved (fixed in 137.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-22: CVE-2025-3029
vendor_mozilla·CVSS 7.3
CVE-2025-3029 [HIGH] Mozilla Foundation Security Advisory 2025-22: CVE-2025-3029
Mozilla Foundation Security Advisory 2025-22
CVE: CVE-2025-3029
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 128.9
Mozilla
Mozilla Foundation Security Advisory 2025-20: CVE-2025-3029
vendor_mozilla·CVSS 7.3
CVE-2025-3029 [HIGH] Mozilla Foundation Security Advisory 2025-20: CVE-2025-3029
Mozilla Foundation Security Advisory 2025-20
CVE: CVE-2025-3029
Product: Firefox
Impact: high
Fixed in: Firefox 137
Mozilla
Mozilla Foundation Security Advisory 2025-24: CVE-2025-3029
vendor_mozilla·CVSS 7.3
CVE-2025-3029 [HIGH] Mozilla Foundation Security Advisory 2025-24: CVE-2025-3029
Mozilla Foundation Security Advisory 2025-24
CVE: CVE-2025-3029
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.9
Mozilla
Mozilla Foundation Security Advisory 2025-23: CVE-2025-3029
vendor_mozilla·CVSS 7.3
CVE-2025-3029 [HIGH] Mozilla Foundation Security Advisory 2025-23: CVE-2025-3029
Mozilla Foundation Security Advisory 2025-23
CVE: CVE-2025-3029
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 137
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1952213https://www.mozilla.org/security/advisories/mfsa2025-20/https://www.mozilla.org/security/advisories/mfsa2025-22/https://www.mozilla.org/security/advisories/mfsa2025-23/https://www.mozilla.org/security/advisories/mfsa2025-24/https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html
2025-04-01
Published