01 Record
CVE-2023-20187
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker
HighPUBLISHEDCNA: cisco
CNA base score8.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
02 Description
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.87% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 58.5% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. 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
- 2023-09-27 17:19Z3 YR AGO
- Last updated
- 2024-08-02 09:05Z2 YR AGO
- Reserved
- 2022-10-27
- Assigning CNA
- cisco
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.6)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-823Use of Out-of-range Pointer OffsetBase
- Data version
- 5.1
- Document digest
- 067a8e3c9ba24c6a71ffa0ccc702b608ca505496f8ce102084dc0a741e87a6aa
05 Affected products
VendorProductVersionsPlatforms
CiscoCisco IOS XE Software3.7.1S, 3.7.2S, 3.7.3S, 3.7.4S, 3.7.5S, 3.7.6S, 3.7.7S, 3.7.2tS, 3.8.0S, 3.8.1S, 3.8.2S, 3.9.1S, 3.9.0S, 3.9.2S, 3.10.0S, 3.10.1S, 3.10.2S, 3.10.3S, 3.10.4S, 3.10.5S, 3.10.6S, 3.10.7S, 3.10.1xbS, 3.10.8S, 3.10.8aS, 3.10.9S, 3.10.10S, 3.11.1S, 3.11.2S, 3.11.0S, 3.11.3S, 3.11.4S, 3.12.0S, 3.12.1S, 3.12.2S, 3.12.3S, 3.12.4S, 3.13.0S, 3.13.1S, 3.13.2S, 3.13.3S, 3.13.4S, 3.13.5S, 3.13.2aS, 3.13.5aS, 3.13.6S, 3.13.7S, 3.13.6aS, 3.13.8S, 3.13.9S, 3.13.10S, 3.14.0S, 3.14.1S, 3.14.2S, 3.14.3S, 3.14.4S, 3.15.0S, 3.15.1S, 3.15.2S, 3.15.3S, 3.15.4S, 3.16.0S, 3.16.1aS, 3.16.2S, 3.16.3S, 3.16.2bS, 3.16.4aS, 3.16.4bS, 3.16.5S, 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, 16.2.1, 16.2.2, 16.3.1, 16.3.2, 16.3.3, 16.3.1a, 16.3.4, 16.3.5, 16.3.6, 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, 16.5.1b, 16.5.2, 16.5.3, 16.6.1, 16.6.2, 16.6.3, 16.6.4, 16.6.5, 16.6.6, 16.6.7, 16.6.8, 16.6.9, 16.6.10, 16.7.1, 16.7.2, 16.7.3, 16.8.1, 16.8.1s, 16.8.2, 16.8.3, 16.9.1, 16.9.2, 16.9.1s, 16.9.3, 16.9.4, 16.9.5, 16.9.6, 16.9.7, 16.9.8, 16.10.1, 16.10.1a, 16.10.1s, 16.10.1e, 16.10.2, 16.10.3, 16.11.1, 16.11.1a, 16.11.2, 16.11.1s, 16.12.1, 16.12.1s, 16.12.1a, 16.12.1c, 16.12.2, 16.12.3, 16.12.8, 16.12.2s, 16.12.4, 16.12.3s, 16.12.5, 16.12.6, 16.12.7, 16.12.10a, 17.1.1, 17.1.1s, 17.1.1t, 17.1.3, 17.2.1, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.2, 17.3.3, 17.3.1a, 17.3.4, 17.3.5, 17.3.4a, 17.3.6, 17.3.7, 17.4.1, 17.4.2, 17.4.1a, 17.4.1b, 17.5.1, 17.5.1a, 17.5.1b, 17.5.1c, 17.6.1, 17.6.2, 17.6.1a, 17.6.3, 17.6.3a, 17.6.4, 17.6.5, 17.6.5a, 17.7.1, 17.7.1a, 17.7.2, 17.10.1, 17.10.1a, 17.8.1, 17.8.1a, 17.9.1, 17.9.2, 17.9.1a, 17.9.3, 17.9.2a, 17.9.3a, 17.11.1, 17.11.1a—
06 References
- sec.cloudapps.cisco.comcisco-sa-mlre-H93FswRzhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mlre-H93FswRz