CVE-2026-27171
A local attacker can exploit a vulnerability in zlib to conduct a Denial of Service attack.
CSIRTS triage
- What
- A vulnerability allows a local attacker to conduct a Denial of Service attack.
- Who is affected
- Local deployments of zlib are affected.
- Urgency
- Remediation is low urgency as the vulnerability is less severe.
- Action
- Update to the latest version of zlib to mitigate this vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-27171
Get an email if CVE-2026-27171 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 risk0.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
Advisory coverage (1)
- low[UPDATE] [low] zlib: Vulnerability allows Denial of Servicecert-bund · 2026-07-09
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-2026-27171)