CVE-2026-49975
An attacker can exploit multiple vulnerabilities in Apache HTTP Server to execute arbitrary code, bypass security measures, conduct cross-site scripting attacks, alter and disclose data, cause a denial-of-service condition, or carry out other unspecified attacks.
CSIRTS triage
- What
- A denial of service vulnerability has been discovered in Zimbra.
- Who is affected
- Deployments of Zimbra are affected.
- Urgency
- Remediation is urgent due to the potential for service disruption.
- Action
- Apply the latest security updates for Zimbra.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Elevated exploitation risk11.5% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all EPSS-scored CVEs.
Advisory coverage (4)
- high[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund · 2026-07-09
- high[UPDATE] [high] HTTP/2 implementations: Vulnerability allows denial of servicecert-bund · 2026-07-09
- unknownZimbra Denial of Service Vulnerabilityhkcert · 2026-06-22
- highCVE-2026-49975: Apache HTTP Server: mod_http2 denial of servicemsrc · 2026-06-09
External references
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