6.3

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.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 10

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 01-09-2026
    Last 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 versions

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 score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat3 products
Debian1 product
  • libsshAll versions (No fix recorded) | < 0.11.5-0+deb13u1 | < 0.12.0-1
Libssh1 product
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

References

12 links
Show all 12 references