Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection.
This vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer out-of-bounds read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to obtain sensitive information in the Snort 3 data stream.
This vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer out-of-bounds read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to obtain sensitive information in the Snort 3 data stream.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | unknown |
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| Cisco | Cisco UTD SNORT IPS Engine Software | unknown |
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No data.
No data.
| Vendor | Product | Confidence | Versions |
|---|---|---|---|
| Cisco | Secure Firewall Threat Defense | — | — |
| Cisco | Snort | — | — |
| Cisco | Utd Snort Ips Engine Software | — | — |
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Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 08 Jan 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Cisco
Cisco secure Firewall Threat Defense Cisco snort Cisco utd Snort Ips Engine Software |
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| Vendors & Products |
Cisco
Cisco secure Firewall Threat Defense Cisco snort Cisco utd Snort Ips Engine Software |
Wed, 07 Jan 2026 17:15:00 +0000
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| Metrics |
ssvc
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Wed, 07 Jan 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer out-of-bounds read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to obtain sensitive information in the Snort 3 data stream. | |
| Title | Cisco Snort DCERPC Stub Data Out of Bounds Read | |
| Weaknesses | CWE-200 | |
| References |
| |
| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2026-02-12T18:48:32.446Z
Reserved: 2025-10-08T11:59:15.352Z
Link: CVE-2026-20027
Vulnrichment
Updated: 2026-01-07T16:51:31.624Z
NVD
Status : Awaiting Analysis
Published: 2026-01-07T17:16:02.877
Modified: 2026-01-08T18:08:54.147
Link: CVE-2026-20027
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-01-08T09:48:38Z
Weaknesses