CVE-2025-20153
Last modified
CVE-2025-20153 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability in the email filtering mechanism of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to bypass the configured rules and allow emails that should have been denied to flow through an affected device. This vulnerability is due to improper handling of email that passes through an affected device. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
Description
A vulnerability in the email filtering mechanism of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to bypass the configured rules and allow emails that should have been denied to flow through an affected device. This vulnerability is due to improper handling of email that passes through an affected device. An attacker could exploit this vulnerability by sending a crafted email through the affected device. A successful exploit could allow the attacker to bypass email filters on the affected device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Email Gateway | 13.0.0-392 |
| Cisco | Secure Email Gateway | 13.0.5-007 |
| Cisco | Secure Email Gateway | 13.5.1-277 |
| Cisco | Secure Email Gateway | 13.5.4-038 |
| Cisco | Secure Email Gateway | 14.0.0-698 |
| Cisco | Secure Email Gateway | 14.2.0-620 |
| Cisco | Secure Email Gateway | 14.2.1-020 |
| Cisco | Secure Email Gateway | 14.3.0-032 |
| Cisco | Secure Email Gateway | 15.0.0-104 |
| Cisco | Secure Email Gateway | 15.0.1-030 |
| Cisco | Secure Email Gateway | 15.0.3-002 |
| Cisco | Secure Email Gateway | 15.5.0-048 |
| Cisco | Secure Email Gateway | 15.5.1-055 |
| Cisco | Secure Email Gateway | 15.5.2-018 |
| Cisco | Secure Email Gateway | 16.0.0-050 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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