CVE-2023-6004: fedoraproject fedora Injection
CVSS: 4.8v3.1MediumModified
AliasesUBUNTU-CVE-2023-6004DEBIAN-CVE-2023-6004CGA-f2q7-9hc5-4rp7CGA-mjpc-c9pw-3wwv
Published 03-01-2024Last modified 07-11-2025
Vulnerability summary
CVE-2023-6004 is a medium (CVSS 4.8) Injection vulnerability in fedoraproject fedora. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.6% of scored vulnerabilities.
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)EPSS score
0.45%
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 10 · Related 8Timeline
- 03-01-2024PublishedVulnerability first disclosed.
- 07-11-2025Last modifiedVulnerability information updated.
Description
A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.
CVSS metrics
6 scores · 6 sources · 1 versionMedium 4.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
- OSV · WolfiEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
- OSV · ChainguardEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
- NVDNIST4.8MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
0.00 pp
From 0.45% on 18-09-2026
18-09-202618-10-2026
EPSS score0.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard1 product
- libssh< 0.10.6-r0
Debian1 product
- libssh< 0.10.6-0+deb12u1 | < 0.10.6-1
Fedoraproject1 product
- fedoraEOL38
Libssh1 product
- libssh≥ 0.8.0, < 0.9.8 | ≥ 0.10.0, < 0.10.6
Redhat1 product
- enterprise_linux8.0 | 9.0
Ubuntu1 product
- libssh< 0.6.3-4.3ubuntu0.6+esm1 | < 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm3 | < 0.9.3-2ubuntu2.5 | < 0.9.6-2ubuntu0.22.04.3
Wolfi1 product
- libssh< 0.10.6-r0
7 vendors · 7 products
