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01 Record

CVE-2025-20189

A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an

HighPUBLISHEDCNA: cisco
CNA base score7.4 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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02 Description

A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.24% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 16.0% of scored records. A rank, not a probability.
NVD base score
7.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-05-07 17:35Z1 YR AGO
Last updated
2025-05-07 19:44Z1 YR AGO
Reserved
2024-10-10
Assigning CNA
cisco
Record state
PUBLISHED
Severity
High (CVSS 7.4)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weaknesses
  • CWE-762Mismatched Memory Management RoutinesVariant
Data version
5.1
Document digest
8fb78171a8eaf9fd3b854f862e084d4b4d35bf69d745929454fcad10f5ad5c9c

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco IOS XE Software3.16.0S, 3.16.1S, 3.16.1aS, 3.16.2S, 3.16.2aS, 3.16.0cS, 3.16.3S, 3.16.2bS, 3.16.3aS, 3.16.4S, 3.16.4aS, 3.16.4bS, 3.16.5S, 3.16.4dS, 3.16.6S, 3.16.7S, 3.16.6bS, 3.16.7aS, 3.16.7bS, 3.16.8S, 3.16.9S, 3.16.10S, 3.17.0S, 3.17.1S, 3.17.2S, 3.17.1aS, 3.17.3S, 3.17.4S, 16.1.1, 16.1.2, 16.1.3, 16.2.1, 16.2.2, 16.3.1, 16.3.2, 16.3.3, 16.3.1a, 16.3.4, 16.3.5, 16.3.5b, 16.3.6, 16.3.7, 16.3.8, 16.3.9, 16.3.10, 16.3.11, 16.4.1, 16.4.2, 16.4.3, 16.5.1, 16.5.1a, 16.5.1b, 16.5.2, 16.5.3, 3.18.0aS, 3.18.0S, 3.18.1S, 3.18.2S, 3.18.3S, 3.18.4S, 3.18.0SP, 3.18.1SP, 3.18.1aSP, 3.18.1bSP, 3.18.1cSP, 3.18.2SP, 3.18.2aSP, 3.18.3SP, 3.18.4SP, 3.18.3aSP, 3.18.3bSP, 3.18.5SP, 3.18.6SP, 3.18.7SP, 3.18.8aSP, 3.18.9SP, 16.6.1, 16.6.2, 16.6.3, 16.6.4, 16.6.5, 16.6.4a, 16.6.5a, 16.6.6, 16.6.7, 16.6.8, 16.6.9, 16.6.10, 16.7.1, 16.7.1a, 16.7.1b, 16.7.2, 16.7.3, 16.7.4, 16.8.1, 16.8.1a, 16.8.1b, 16.8.1s, 16.8.1c, 16.8.1d, 16.8.2, 16.8.1e, 16.8.3, 16.9.1, 16.9.2, 16.9.1a, 16.9.1b, 16.9.1s, 16.9.3, 16.9.4, 16.9.3a, 16.9.5, 16.9.5f, 16.9.6, 16.9.7, 16.9.8, 16.10.1, 16.10.1a, 16.10.1b, 16.10.1s, 16.10.1c, 16.10.1e, 16.10.1d, 16.10.2, 16.10.1f, 16.10.1g, 16.10.3, 16.11.1, 16.11.1a, 16.11.1b, 16.11.2, 16.11.1s, 16.12.1, 16.12.1s, 16.12.1a, 16.12.1c, 16.12.1w, 16.12.2, 16.12.1y, 16.12.2a, 16.12.3, 16.12.8, 16.12.2s, 16.12.1x, 16.12.1t, 16.12.4, 16.12.3s, 16.12.3a, 16.12.4a, 16.12.5, 16.12.6, 16.12.1z1, 16.12.5a, 16.12.5b, 16.12.1z2, 16.12.6a, 16.12.7, 16.12.9, 16.12.10, 16.12.10a, 16.12.11, 16.12.12, 16.12.13, 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.3, 17.2.1, 17.2.1r, 17.2.1a, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.2, 17.3.3, 17.3.1a, 17.3.1w, 17.3.2a, 17.3.1x, 17.3.1z, 17.3.4, 17.3.5, 17.3.4a, 17.3.6, 17.3.4b, 17.3.4c, 17.3.5a, 17.3.5b, 17.3.7, 17.3.8, 17.3.8a, 17.4.1, 17.4.2, 17.4.1a, 17.4.1b, 17.4.2a, 17.5.1, 17.5.1a, 17.6.1, 17.6.2, 17.6.1w, 17.6.1a, 17.6.1x, 17.6.3, 17.6.1y, 17.6.1z, 17.6.3a, 17.6.4, 17.6.1z1, 17.6.5, 17.6.6, 17.6.6a, 17.6.5a, 17.6.7, 17.6.8, 17.6.8a, 17.7.1, 17.7.1a, 17.7.1b, 17.7.2, 17.10.1, 17.10.1a, 17.10.1b, 17.8.1, 17.8.1a, 17.9.1, 17.9.1w, 17.9.2, 17.9.1a, 17.9.1x, 17.9.1y, 17.9.3, 17.9.2a, 17.9.1x1, 17.9.3a, 17.9.4, 17.9.1y1, 17.9.5, 17.9.4a, 17.9.5a, 17.9.5b, 17.9.6, 17.9.6a, 17.9.5e, 17.9.5f, 17.11.1, 17.11.1a, 17.12.1, 17.12.1w, 17.12.1x, 17.12.2, 17.12.3, 17.12.2a, 17.12.1y, 17.12.1z, 17.12.4, 17.12.3a, 17.12.1z1, 17.12.4a, 17.12.4b, 17.13.1, 17.13.1a, 17.14.1, 17.14.1a—

06 References