CVE-2026-59845: Libssh: libssh: denial of service via unchecked proxycommand fork() failure
CSIRTS triage
- What
- Denial of service can occur via unchecked proxycommand fork() failure.
- Who is affected
- Users of libssh are affected by this vulnerability.
- Urgency
- Remediation is medium urgency due to the medium severity of the vulnerability.
- Action
- Update to a patched version of libssh.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59845
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-2026-598450.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-59845 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
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