CVE-2023-44487 — CVE & Security Advisory Radar

🎯 CVE-2023-44487 HIGH 7.5 🔥 EPSS 100% ⚠️ CISA KEV · 1071 T 🔓 Exploited 🧪 PoC 🇪🇺 EUVD

📄 .md Alle CVEs anzeigen ✕

CVE-2023-44487 | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

Klassifikation & Betroffenheit:

n/a n/a n/asiemens simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmware *siemens sinec_ins *siemens sinec_ins 1.0siemens sinec_nms *siemens st7_scadaconnect *siemens simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware *siemens siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware *

Improper Control of Generation of Code ('Code Injection') 🎯 Medium

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

🛡️ Empfohlene Mitigation: Refactor your program so that you do not have to dynamically generate code.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-35 · Leverage Executable Code in Non-Executab… (Very High) CAPEC-77 · Manipulating User-Controlled Variables (Very High) CAPEC-242 · Code Injection (High)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1027.006 · Obfuscated Files or Information: H… T1027.009 · Obfuscated Files or Information: E… T1564.009 · Hide Artifacts: Resource Forking

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-36748 9.0 CVE-2026-30282 9.0 CVE-2025-32991 9.0 CVE-2025-69634 9.0 CVE-2025-68723 9.0

🧪 Exploit-Evidenz: EDB-52426 · HTTP/2 2.0 - Denial Of Service (DOS)

🐙 bcdannyboy/CVE-2023-44487 🐙 imabee101/CVE-2023-44487 🐙 ByteHackr/CVE-2023-44487 🐙 pabloec20/rapidreset 🐙 secengjeff/rapidresetclient

🩹 Patch verfügbar (OSV):

🩹 1a3b131141fed9468d9da1167c7fcb37902935ed (Commit) 🩹 a7081f551473ba57ace1d5e10c8cf486c1e715a1 (Commit)

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2023

Veröffentlicht 10/2023

Im KEV seit 10/2023

Heute 15.09.

CVSS-Vektor-Analyse: 7.5

AV · Angriffsvektor Netzwerk

AC · Komplexität Gering

PR · Privilegien Keine

UI · Interaktion Keine

S · Scope Unverändert

C · Vertraulichkeit Keine

I · Integrität Keine

A · Verfügbarkeit Hoch

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Veröffentlicht:10.10.2023

Aktualisiert:11.08.2026 19:37

Assigner (CNA):mitre

EUVD-ID:EUVD-2023-2795

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	2026-08-29	2026-09-14
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

7.5 HIGH

🇪🇺 EUVD ⚠️ KEV

EPSS

100%

CVE-2023-44487 🌐 Netzwerk (Remote) 🔓 Keine Authentifizierung nötig

🔓 🧪 n/a

CVE-2023-44487 | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

10.10.2023

🛡️ Details ➔

CVE-2023-44487 | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

Zero-Day & Vulnerability Intelligence Hub

CVE-2023-44487 | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.