CVE-2026-76445
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could…
- Risk score
- 49/100
- CVSS
- 5.3 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 21 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the detection engine to unexpectedly restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a flaw in logic handling when General Packet …
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 5.3 medium
- On your watchlist: cisco
References
Original description
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the detection engine to unexpectedly restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a flaw in logic handling when General Packet Radio Service (GPRS) Tunneling Protocol (GTP) extension headers are processed within the codec. An attacker could exploit this vulnerability by sending a crafted, fragmented UDP datagram that contains these headers to the Snort 3 Detection Engine of an affected device. A successful exploit could allow the attacker to cause the detection engine to enter an infinite loop, resulting in a DoS condition.
Last activity 21 Oct 2026. Patch Forecast updates every hour.