CVE-2025-14769
HIGHCVSS v3
7.5
HIGH
EPSS Score
0.0%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In some cases, the `tcp-setmss` handler may free the packet data and throw an error without halting the rule processing engine. A subsequent rule can then allow the traffic after the packet data is gone, resulting in a NULL pointer dereference. Maliciously crafted packets sent from a remote host may result in a Denial of Service (DoS) if the `tcp-setmss` directive is used and a subsequent rule would allow the traffic to pass.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 3/9/2026
- Last Modified
- 3/17/2026
Frequently Asked Questions
What is CVE-2025-14769?
In some cases, the `tcp-setmss` handler may free the packet data and throw an error without halting the rule processing engine. A subsequent rule can then allow the traffic after the packet data is gone, resulting in a NULL pointer dereference. Maliciously crafted packets sent from a remote host may result in a Denial of Service (DoS) if the `tcp-setmss` directive is used and a subsequent rule would allow the traffic to pass.
Is CVE-2025-14769 actively exploited?
Active exploitation of CVE-2025-14769 has not been confirmed. The EPSS score is 0.0%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-14769?
CVE-2025-14769 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.
Is CVE-2025-14769 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.