CVE-2023-5732: debian debian_linux
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-5732DEBIAN-CVE-2023-5732CGA-mp28-q827-qgx8CGA-v66j-9j53-3q9c
Published 24-10-2023Last modified 18-12-2025
Vulnerability summary
CVE-2023-5732 is a medium (CVSS 6.5) vulnerability in debian debian_linux. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.1% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.97%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 25 · Related 7DLA-3632-1DLA-3637-1DSA-5535-1DSA-5538-1MGASA-2023-0308MGASA-2023-0309OPENSUSE-SU-2024:13356-1RHSA-2023:6162RHSA-2023:6185RHSA-2023:6186RHSA-2023:6187RHSA-2023:6188RHSA-2023:6189RHSA-2023:6191RHSA-2023:6194RHSA-2023:6195RHSA-2023:6196RHSA-2023:6197RHSA-2023:6198RHSA-2023:6199SUSE-SU-2023:4302-1SUSE-SU-2023:4532-1SUSE-SU-2023:4533-1SUSE-SU-2023:4551-1USN-6468-1CGA-7P9P-4H5C-JM6X
Timeline
- 24-10-2023PublishedVulnerability first disclosed.
- 18-12-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.97%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
0.00 pp
From 0.97% on 20-09-2026
20-09-202620-10-2026
EPSS score0.97%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Debian3 products
- firefox-esr< 115.4.0esr-1~deb12u1 | < 115.4.0esr-1
- thunderbird< 1:115.4.1-1~deb12u1 | < 1:115.4.1-1
- debian_linuxEOL10.0 | 11.0
Mozilla3 products
- firefox≥ unspecified, < 117 | < 117.0
- firefox_esr≥ unspecified, < 115.4 | < 115.4.1
- thunderbird≥ unspecified, < 115.4.1 | < 115.4.1
Chainguard1 product
- firefox-esr< 117.0-r0
Ubuntu1 product
- thunderbird< 1:115.4.1+build1-0ubuntu0.20.04.1 | < 1:115.4.1+build1-0ubuntu0.22.04.1 | < 1:115.4.1+build1-0ubuntu1
4 vendors · 8 products
