[UPDATE] [medium] libssh: Vulnerability allows Denial of Service
A remote, anonymous attacker can exploit a vulnerability in libssh to carry out a Denial of Service attack.
CSIRTS triage
- What
- A vulnerability allows a Denial of Service attack.
- Who is affected
- Remote, anonymous attackers targeting libssh deployments.
- Urgency
- Remediation is medium urgency as it can lead to service disruption.
- Action
- Apply patches or updates to libssh.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0634
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-37310.63% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-3731 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownUSN-8093-2: libssh vulnerabilityubuntu
- unknownDSA-6410-1 libssh - security updatedebian
- high[UPDATE] [high] IBM App Connect Enterprise: Multiple vulnerabilitiescert-bund
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