CVE-2026-59843
An attacker can exploit multiple vulnerabilities in libssh to gain elevated privileges, bypass security measures, disclose confidential information, trigger a denial-of-service attack, and manipulate data.
CSIRTS triage
- What
- Multiple vulnerabilities can be exploited to gain elevated privileges, bypass security measures, disclose information, trigger denial-of-service attacks, and manipulate data.
- Who is affected
- Users of libssh.
- Urgency
- Remediation is high urgency due to the potential for severe impacts from exploitation.
- Action
- Update to the latest version of libssh.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-59843
Get an email if CVE-2026-59843 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
Advisory coverage (3)
- high[NEW] [high] libssh: Multiple vulnerabilitiescert-bund · 2026-07-30
- mediumCVE-2026-59843: A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet si…nvd · 2026-07-21
- mediumCVE-2026-59843: Libssh: libssh: denial of service via zero advertised channel packet sizemsrc · 2026-07-14
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-59843)