CVE-2026-20058

Vulnerability in Cisco Snort

CVSS Skor

5.8

EPSS İhtimal

%0.4

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-2026-20058 için toplanan üretici, dağıtım, yama ve güvenlik kaynağı kayıtlarını karşılaştırıp kanıt bağlantılı bir açıklama hazırlayalım.

Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. These vulnerabilities are due to improper error checking when decompressing VBA data. An attacker could exploit these vulnerabilities by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart, causing a DoS condition.

IMPACT — Etkilenen Ürünler ve Yazılımlar

Affected Products

The following products are affected by CVE-2026-20058 vulnerability. Even if our threat engine is aware of the exact versions of the products that are affected, the information is represented below.

ID	VENDOR	PRODUCT	ACTION
1	cisco	snort	İncele
2	cisco	secure firewall threat defense	İncele
3	cisco	secure firewall threat defense	İncele
4	cisco	secure firewall threat defense	İncele
5	cisco	secure firewall threat defense	İncele
6	cisco	secure firewall threat defense	İncele
7	cisco	secure firewall threat defense	İncele
8	cisco	secure firewall threat defense	İncele
9	cisco	secure firewall threat defense	İncele
10	cisco	secure firewall threat defense	İncele
11	cisco	secure firewall threat defense	İncele
12	cisco	secure firewall threat defense	İncele
13	cisco	secure firewall threat defense	İncele
14	cisco	secure firewall threat defense	İncele
15	cisco	secure firewall threat defense	İncele
16	cisco	secure firewall threat defense	İncele
17	cisco	secure firewall threat defense	İncele
18	cisco	secure firewall threat defense	İncele
19	cisco	secure firewall threat defense	İncele
20	cisco	secure firewall threat defense	İncele
21	cisco	secure firewall threat defense	İncele
22	cisco	secure firewall threat defense	İncele
23	cisco	secure firewall threat defense	İncele
24	cisco	secure firewall threat defense	İncele
25	cisco	secure firewall threat defense	İncele
26	cisco	secure firewall threat defense	İncele
27	cisco	secure firewall threat defense	İncele
28	cisco	secure firewall threat defense	İncele
29	cisco	secure firewall threat defense	İncele
30	cisco	secure firewall threat defense	İncele
31	cisco	secure firewall threat defense	İncele
32	cisco	secure firewall threat defense	İncele
33	cisco	secure firewall threat defense	İncele
34	cisco	secure firewall threat defense	İncele
35	cisco	secure firewall threat defense	İncele
36	cisco	secure firewall threat defense	İncele
37	cisco	secure firewall threat defense	İncele
38	cisco	secure firewall threat defense	İncele
39	cisco	unified threat defense snort intrusion prevention system engine	İncele
40	cisco	unified threat defense snort intrusion prevention system engine	İncele
41	cisco	unified threat defense snort intrusion prevention system engine	İncele
42	cisco	unified threat defense snort intrusion prevention system engine	İncele
43	cisco	unified threat defense snort intrusion prevention system engine	İncele
44	cisco	unified threat defense snort intrusion prevention system engine	İncele
45	cisco	unified threat defense snort intrusion prevention system engine	İncele
46	cisco	unified threat defense snort intrusion prevention system engine	İncele
47	cisco	unified threat defense snort intrusion prevention system engine	İncele
48	cisco	unified threat defense snort intrusion prevention system engine	İncele
49	cisco	unified threat defense snort intrusion prevention system engine	İncele
50	cisco	unified threat defense snort intrusion prevention system engine	İncele
51	cisco	unified threat defense snort intrusion prevention system engine	İncele
52	cisco	unified threat defense snort intrusion prevention system engine	İncele
53	cisco	unified threat defense snort intrusion prevention system engine	İncele
54	cisco	unified threat defense snort intrusion prevention system engine	İncele
55	cisco	unified threat defense snort intrusion prevention system engine	İncele
56	cisco	unified threat defense snort intrusion prevention system engine	İncele
57	cisco	unified threat defense snort intrusion prevention system engine	İncele
58	cisco	unified threat defense snort intrusion prevention system engine	İncele
59	cisco	unified threat defense snort intrusion prevention system engine	İncele
60	cisco	unified threat defense snort intrusion prevention system engine	İncele
61	cisco	unified threat defense snort intrusion prevention system engine	İncele
62	cisco	unified threat defense snort intrusion prevention system engine	İncele
63	cisco	unified threat defense snort intrusion prevention system engine	İncele
64	cisco	unified threat defense snort intrusion prevention system engine	İncele
65	cisco	unified threat defense snort intrusion prevention system engine	İncele
66	cisco	unified threat defense snort intrusion prevention system engine	İncele
67	cisco	unified threat defense snort intrusion prevention system engine	İncele
68	cisco	unified threat defense snort intrusion prevention system engine	İncele

Total Affected Vendor: 1|Products: 68

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.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
5.8	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L	NVD

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-2026-20058 is associated with the following CWEs:

CWE-786: Common Weakness Enumeration Entry CWE-786

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-2026-20058 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-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-ftd-snort3-vbavuls-96UcVVedvendor-advisory

CVSS Vektör Radar Grafiği

5.8 / 10

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

cisco

Zafiyet Türü (CWE & CAPEC)

CWE-786

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Bu açığı API ile alın

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

Ücretsiz anahtar al Belgeler

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2026-20058"