CVE-2026-20027

CWE-200 — Information ExposureCWE-4154 documents4 sources
Severity
5.3MEDIUM
EPSS
0.0%
top 86.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco Secure Firewall Threat Defense (ftd) SoftwareCisco Cisco UTD Snort IPS Engine Software
Timeline
PublishedJan 7

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 o…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶CVEListV5cisco/cisco_utd_snort_ips_engine_software103 versions+102

🔴Vulnerability Details

2
CVEList
Cisco Snort DCERPC Stub Data Out of Bounds Read↗2026-01-07
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GHSA
GHSA-8852-3pqj-jhpv: Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to↗2026-01-07
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📋Vendor Advisories

1
Cisco
Multiple Cisco Products Snort 3 Distributed Computing Environment/Remote Procedure Call Vulnerabilities↗2026-01-07
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CVE-2026-20027 (MEDIUM CVSS 5.3) | Multiple Cisco products are affecte | cvebase.io