[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities can be exploited by an attacker to carry out a Denial of Service attack, bypass security measures, disclose information, and manipulate files.

Who is affected

Deployments of Apache HTTP Server are affected.

Urgency

Remediation is high urgency due to the potential for severe impacts.

Action

Update to the latest version of Apache HTTP Server.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-08-20

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-1529

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.

• Moderate exploitation riskCVE-2023-387093.9% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 89% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2024-425160.71% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2024-432040.81% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2024-433941.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 64% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2024-472520.69% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2025-230481.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 60% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2025-496301.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 66% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2025-498120.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2025-530204.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 91% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• criticalexploited[UPDATE] [critical] Oracle Fusion Middleware: Multiple Vulnerabilitiescert-bund
• medium[UPDATE] [medium] Apache HTTP Server: Multiple Vulnerabilities Allow Data Manipulationcert-bund
• highexploited[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund

Recent advisories for Apache HTTP Server

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• high[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund · 2026-08-25
• highCVE-2026-54789: mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache…nvd · 2026-08-21
• high[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund · 2026-08-21
• mediumCVE-2026-63044: Server-Side Request Forgery (SSRF) vulnerability in Apache InLong. Any authenticated user (no …nvd · 2026-08-20
• medium[UPDATE] [medium] Apache HTTP Server: Multiple Vulnerabilities Allow Data Manipulationcert-bund · 2026-08-20
• highexploited[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund · 2026-08-20

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