[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilities
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A remote anonymous attacker can exploit multiple vulnerabilities in Apache HTTP Server to execute arbitrary code, cause a denial-of-service condition, bypass security measures, or disclose confidential information.
CSIRTS triage
- What
- Multiple vulnerabilities allow remote anonymous attackers to execute arbitrary code, cause denial-of-service, bypass security measures, or disclose confidential information.
- Who is affected
- Deployments of Apache HTTP Server are affected by these vulnerabilities.
- Urgency
- Remediation is urgent due to the high severity and active exploitation of these vulnerabilities.
- Action
- Update to the latest version of Apache HTTP Server to mitigate these vulnerabilities.
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-2024-1504
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.
- Exploitation confirmedCVE-2024-38475Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99.9% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2023-387093.9% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 90% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2024-363871.7% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 75% of all EPSS-scored CVEs.
- Exploitation likely imminentCVE-2024-38472EPSS puts this in the most-targeted tier (69.5% 30-day exploitation probability). Prioritize alongside KEV items. Riskier than 99.3% of all EPSS-scored CVEs.
- Elevated exploitation riskCVE-2024-3847325.9% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 98% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2024-384742.5% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 83% of all EPSS-scored CVEs.
- Elevated exploitation riskCVE-2024-3847641.6% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 99% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2024-384773.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 87% of all EPSS-scored CVEs.
- Elevated exploitation riskCVE-2024-3957335.4% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 98% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2024-38475 | coverage & exploitation status | NVD · CVE.org |
| CVE-2023-38709 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-36387 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-38472 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-38473 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-38474 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-38476 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-38477 | coverage & exploitation status | NVD · CVE.org |
| CVE-2024-39573 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund
- medium[UPDATE] [medium] Apache HTTP Server: Multiple Vulnerabilities Allow Data Manipulationcert-bund
- highexploited[UPDATE] [high] Oracle Communications: Multiple vulnerabilitiescert-bund
- criticalexploitedCVE-2024-38475: Apache HTTP Server Improper Escaping of Output Vulnerabilitycisa-kev
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
- high[UPDATE] [high] Apache HTTP Server: Multiple vulnerabilitiescert-bund · 2026-08-20
- medium[UPDATE] [medium] Apache HTTP Server: Multiple Vulnerabilities Allow Data Manipulationcert-bund · 2026-08-20
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