CVE Listesine Dön
CVE-2026-20066

Uncontrolled resource consumption in Cisco Snort

CVSS Skor

5.8

EPSS İhtimal

%0.5

Risk Skoru

0.0

Yayın

7 ay önce

Overview (Genel Bakış)Public Exploits (0)Newsroom (Haberler)Vulnerability Timeline
Yama durumu henüz doğrulanamadı

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Envanterimdeki Etkisi

Yalnızca hesabınıza eklediğiniz kişisel ürünler değerlendirilir; kurumsal envanter burada görünmez.

Oturum kontrol ediliyor…

Zafiyet Açıklaması

DayBreach CVE AI Araştırması

CVE-2026-20066 için toplanan üretici, dağıtım, yama ve güvenlik kaynağı kayıtlarını karşılaştırıp kanıt bağlantılı bir açıklama hazırlayalım.

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the JSTokenizer normalization logic when the HTTP inspection normalizes JavaScript. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly. JSTokenizer is not enabled by default.

IMPACT — Etkilenen Ürünler ve Yazılımlar

Affected Products

The following products are affected by CVE-2026-20066 vulnerability. Even if our threat engine is aware of the exact versions of the products that are affected, the information is represented below.

IDVENDORPRODUCTACTION
1ciscosnort İncele
2ciscosecure firewall threat defense İncele
3ciscosecure firewall threat defense İncele
4ciscosecure firewall threat defense İncele
5ciscosecure firewall threat defense İncele
6ciscosecure firewall threat defense İncele
7ciscosecure firewall threat defense İncele
8ciscosecure firewall threat defense İncele
9ciscosecure firewall threat defense İncele
10ciscosecure firewall threat defense İncele
11ciscosecure firewall threat defense İncele
12ciscosecure firewall threat defense İncele
13ciscosecure firewall threat defense İncele
14ciscosecure firewall threat defense İncele
15ciscosecure firewall threat defense İncele
16ciscosecure firewall threat defense İncele
17ciscosecure firewall threat defense İncele
18ciscounified threat defense snort intrusion prevention system engine İncele
19ciscounified threat defense snort intrusion prevention system engine İncele
20ciscounified threat defense snort intrusion prevention system engine İncele
21ciscounified threat defense snort intrusion prevention system engine İncele
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Total Affected Vendor: 1|Products: 88

RED HAT CSAF/VEX — Ürün Etki Kontrolü

Red Hat bu CVE için henüz bir CSAF/VEX etki kaydı yayımlamamış. Bu durum “etkilenmiyor” anlamına gelmez.

SCORING — CVSS Çoklu Kaynak Skoru

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from various sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
5.8CVSS V31MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LNVD

Yama ve İyileştirme Rehberi (Solution)

Solution & Remediation Advisory

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Etkilenen ürün ve sürümü yukarıdaki kaynak kanıtlarıyla doğrulayın.
İnternete açık servislerde erişimi kısıtlayın ve ağ segmentasyonu uygulayın.
Yama doğrulanana kadar üretici bültenini izleyin; bilinmeyen durumu “yama yok” olarak yorumlamayın.
Sunucu günlüklerini ve ağ uçlarını anormal çalıştırma belirtileri için izleyin.

Public exploit ve aktif sömürü durumu

Doğrulanmış exploit istihbaratı

Bu CVE için henüz doğrulanmış public PoC, exploit repository’si veya Metasploit modülü bulunamadı.

Zafiyet Dağılımı ve Saldırı Kalıpları (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-20066 is associated with the following CWEs:

CWE-400: Common Weakness Enumeration Entry CWE-400

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-20066 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Saldırı Vektörü ve Erişilebilirlik Karakteristiği

ErişimAğ üzerinden
YetkiGerekmiyor
KullanıcıGerekmiyor

Resmi Kaynaklar ve Danışma Bültenleri

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwzvendor-advisory

CVSS Vektör Radar Grafiği

5.8 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Attack VectorNetwork (Ağ)
Attack ComplexityLow (Düşük)
Privileges RequiredNone (Gerekmiyor)
User InteractionNone (Gerekmiyor)
Confidentiality (Gizlilik)Low (Düşük)
Integrity (Bütünlük)None (Yok)
Availability (Erişilebilirlik)Low (Düşük)

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Üreticiyi takip et

C
cisco logo
cisco

Zafiyet Türü (CWE & CAPEC)

CWE-400

İlgili Benzer Açıklar

Bu açığı API ile alın

Etkilenen ürünler, sürüm aralıkları, istismar durumu ve yama bilgisi tek istekte; ücretsiz anahtarla.

Ücretsiz anahtar alBelgeler
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-20066"