Cisco Cisco 4000 Series Integrated Services Routers

Name: Cisco Cisco 4000 Series Integrated Services Routers
Brand: Cisco

productNL

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

critical

by severity

0critical0high4medium0low

updated 2026-10-28

vulnerabilities (17)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2025-20352US	—OT critical	41.5% (99th)	KEV	no fix	2025-09-24	≤ vers:unknown/*
CVE-2020-3299US	medium5.8	2.31% (83rd)	—	no fix	2020-10-21	—
CVE-2020-3315US	medium5.3	2.21% (83rd)	—	no fix	2020-05-06	—
CVE-2019-1649US	medium6.7	0.61% (49th)	—	no fix	2019-05-13	—
CVE-2025-20334US	—	0.50% (43rd)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20315US	—	0.44% (38th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20160US	—	0.43% (37th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20327US	—	0.40% (34th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20312US	—	0.40% (34th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20316US	—	0.34% (27th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20240US	—	0.34% (27th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20338US	medium6.7	0.30% (22nd)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20149US	—	0.24% (15th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20311US	—	0.20% (10th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20293US	—	0.20% (10th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20313US	—	0.18% (8th)	—	no fix	2025-09-24	≤ vers:unknown/*
CVE-2025-20314US	—	0.16% (5th)	—	no fix	2025-09-24	≤ vers:unknown/*

The flaw types (CWEs) most of these CVEs share.

CWE-284Improper Access Control2 CVEs
CWE-693Protection Mechanism Failure2 CVEs
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')1 CVEs
CWE-121Stack-based Buffer Overflow1 CVEs
CWE-1287Improper Validation of Specified Type of Input1 CVEs
CWE-141Improper Neutralization of Parameter/Argument Delimiters1 CVEs
CWE-19CWE-191 CVEs
CWE-232Improper Handling of Undefined Values1 CVEs

Which sources assert this record, and when.

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