CVE catalog
CVE-2023-5732
firefox-esr: CVE-2023-5732
- Severity
- Medium · CVSS 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.05% · Oct 25, 2026
An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | firefox-esr | sid | 153.5.1esr-1 | fixed |
| Debian | firefox-esr | forky | 153.5.1esr-1 | fixed |
| Debian | firefox-esr | trixie | 140.15.0esr-1~deb13u1 | fixed |
| Debian | firefox-esr | trixie-security | 153.5.1esr-1~deb13u1 | fixed |
| Debian | firefox-esr | bookworm | 140.12.0esr-1~deb12u1 | fixed |
| Debian | firefox-esr | bookworm-security | 153.5.1esr-1~deb12u1 | fixed |
| Debian | thunderbird | sid | 1:153.5.1esr-1 | fixed |
| Debian | thunderbird | forky | 1:153.5.0esr-1 | fixed |
| Debian | thunderbird | trixie | 1:140.12.0esr-1~deb13u1 | fixed |
| Debian | thunderbird | trixie-security | 1:153.5.1esr-1~deb13u2 | fixed |
| Debian | thunderbird | bookworm | 1:140.12.0esr-1~deb12u1 | fixed |
| Debian | thunderbird | bookworm-security | 1:153.5.1esr-1~deb12u1 | fixed |
| Ubuntu | thunderbird | 20.04 | 1:68.1.2+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.1.2+build1-0ubuntu2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.2.1+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.2.2+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.3.0+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.3.1+build1-0ubuntu2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.4.1+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.4.2+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.5.0+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.6.0+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.7.0+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.7.0+build1-0ubuntu2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.8.0+build2-0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:68.10.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:78.7.1+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:78.8.1+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:78.11.0+build1-0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:78.13.0+build1-0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:78.14.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:78.14.0+build1-0ubuntu0.20.04.2 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:91.5.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:91.7.0+build2-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:91.8.1+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:91.9.1+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:91.11.0+build2-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.2.2+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.4.2+build2-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.7.1+build2-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.8.0+build2-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.9.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.10.0+build2-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.11.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.13.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.15.0+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:102.15.1+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:115.3.1+build1-0ubuntu0.20.04.1 | vulnerable |
| Ubuntu | thunderbird | 20.04 | 1:115.4.1+build1-0ubuntu0.20.04.1 | fixed |
| Ubuntu | thunderbird | 22.04 | 1:91.1.2+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.3.0+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.3.1+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.3.2+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.4.0+build1.1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.4.0+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.5.0+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.5.1+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.6.1+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.7.0+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.7.0+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.8.0+build2-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.9.1+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:91.11.0+build2-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.2.2+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.4.2+build2-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.7.1+build2-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.8.0+build2-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.9.0+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.10.0+build2-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.11.0+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.13.0+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.15.0+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:102.15.1+build1-0ubuntu0.22.04.1 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:115.3.1+build1-0ubuntu0.22.04.2 | vulnerable |
| Ubuntu | thunderbird | 22.04 | 1:115.4.1+build1-0ubuntu0.22.04.1 | fixed |
| Ubuntu | thunderbird | 24.04 | 1:115.3.1+build1-0ubuntu1 | vulnerable |
| Ubuntu | thunderbird | 24.04 | 1:115.4.1+build1-0ubuntu1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | firefox-esr | source | sid | 115.4.0esr-1 | not yet assigned | Not reported | Not reported |
| Debian | firefox-esr | source | forky | 115.4.0esr-1 | not yet assigned | Not reported | Not reported |
| Debian | firefox-esr | source | trixie | 115.4.0esr-1 | not yet assigned | Not reported | Not reported |
| Debian | firefox-esr | source | bookworm | 115.4.0esr-1~deb12u1 | not yet assigned | Not reported | Not reported |
| Debian | thunderbird | source | sid | 1:115.4.1-1 | not yet assigned | Not reported | Not reported |
| Debian | thunderbird | source | forky | 1:115.4.1-1 | not yet assigned | Not reported | Not reported |
| Debian | thunderbird | source | trixie | 1:115.4.1-1 | not yet assigned | Not reported | Not reported |
| Debian | thunderbird | source | bookworm | 1:115.4.1-1~deb12u1 | not yet assigned | Not reported | Not reported |
| Ubuntu | thunderbird | deb | 20.04 | 1:115.4.1+build1-0ubuntu0.20.04.1 | Not reported | UBUNTU-CVE-2023-5732 | Not reported |
| Ubuntu | thunderbird | deb | 22.04 | 1:115.4.1+build1-0ubuntu0.22.04.1 | Not reported | UBUNTU-CVE-2023-5732 | Not reported |
| Ubuntu | thunderbird | deb | 24.04 | 1:115.4.1+build1-0ubuntu1 | Not reported | UBUNTU-CVE-2023-5732 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://access.redhat.com/errata/RHSA-2023:6188]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_6162.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-5732]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-5732]
- [https://security-tracker.debian.org/tracker/CVE-2023-5732]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2743.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]