CVE-2026-0964: libssh Path Traversal
CVSS: 6.3v3.1MediumModified
AliasesUBUNTU-CVE-2026-0964DEBIAN-CVE-2026-0964
Published 26-03-2026Last modified 01-09-2026
Vulnerability summary
CVE-2026-0964 is a medium (CVSS 6.3) Path Traversal vulnerability in libssh. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.6% of scored vulnerabilities.
CVSS score
6.3/10
010
Medium · v3.1 (NVD)EPSS score
0.41%
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 12 · Related 10Timeline
- 26-03-2026PublishedVulnerability first disclosed.
- 01-09-2026Last modifiedVulnerability information updated.
Description
A malicious SCP server can send unexpected paths that could make the client application override local files outside of working directory. This could be misused to create malicious executable or configuration files and make the user execute them under specific consequences. This is the same issue as in OpenSSH, tracked as CVE-2019-6111.
CVSS metrics
6 scores · 4 sources · 2 versionsMedium 6.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:LSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated6.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Medium 5.0Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:LSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.0MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
- NVDNIST5.0MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
0.00 pp
From 0.41% on 19-09-2026
19-09-202619-10-2026
EPSS score0.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat3 products
- enterprise_linux8.0 | 9.0 | 10.0
- hardened_imagesna
- openshift_container_platform4.0
Debian1 product
- libsshAll versions (No fix recorded) | < 0.11.5-0+deb13u1 | < 0.12.0-1
Libssh1 product
- libssh< 0.11.4
Ubuntu1 product
- libssh< 0.6.3-4.3ubuntu0.6+esm4 | < 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm6 | < 0.9.3-2ubuntu2.5+esm3 | < 0.9.6-2ubuntu0.22.04.6 | < 0.10.6-2ubuntu0.3 | < 0.11.2-1ubuntu0.2
4 vendors · 6 products