[UPDATE] [low] zlib: Vulnerability allows Denial of Service
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.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0435
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-2026-271710.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-27171 | coverage & exploitation status | NVD · CVE.org |
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