Search/CVE-2026-20065
● CVE — Medium

CVE-2026-20065

VendorciscoProductunified threat defense snort intrusion prevention system engine, snort, secure firewall threat defenseDiscoveredMar 4, 2026UpdatedAug 19, 2026

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 binder module initialization logic of the Snort Detection Engine. An attacker could exploit this vulnerability by sending certain 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.

CVSS v3.1
5.8 MEDIUM
EPSS
0.41%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 31, 2026
▲ 0.03pp
0.38% → 0.41% over 5 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityLOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Connections
4 relationships
Timeline
disclosure → media coverage
Mar 4, 2026
Disclosure — published as a CVE record. · last revised by NVD Aug 19, 2026