HOMEVULNERABILITIESCVE-2026-0967
MEDIUM

CVE-2026-0967

CWE-1333Published: March 26, 2026· Updated: Apr 2, 2026

5.5
CVSS v3.1
EPSS:0.07%probability of exploitation in 30 daysPercentile:20.5th

Official Description

A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in a Denial of Service (DoS) for the client.

NVD Source

Technical Analysis

CVE-2026-0967 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

libssh1 product
libssh
Red Hat1 product
enterprise linux
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-0967
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2436981

All References (3)

→
https://access.redhat.com/security/cve/CVE-2026-0967Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2436981Third Party Advisory
→
https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/Release Notes

Quick Facts

CVE IDCVE-2026-0967
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-1333
CISA KEVNo
EPSS (30d)0.07%
Affected2 vendors
PublishedMar 26, 2026

Related CVEs (CWE-1333)

CVE-2026-35458
9.8
CVE-2026-33079
8.7
CVE-2026-47138
8.7
CVE-2026-41040
8.7
CVE-2026-35213
8.7
CVE-2026-22178
8.2

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-0967 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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