A denial-of-service vulnerability exists in the Ethernet/IP server functionality of the EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A large number of network requests in a small span of time can cause the running program to stop. An attacker can send a sequence of requests to trigger this vulnerability.
CVE-2020-13530
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 79.1%
- KEV
- Not listed
Published
December 11, 2020
Last Modified
November 21, 2024
References (2)
- talos-cna@ciscohttps://talosintelligence.com/vulnerability_reports/TALOS-2020-1143
- af854a3a-2127-422b-91ae-364da2661108https://talosintelligence.com/vulnerability_reports/TALOS-2020-1143
Weakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-06-24 07:50 UTCOSV refresh
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- 2026-05-23 04:22 UTCEG score recompute
- 2026-05-23 04:22 UTCGHSA enrichment
Related CVEs(same CWE)
Same CWE
10 shownCWE-400 · CWE-672
Frequently asked(5)
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