Improper comparison with the certificates trusted list in S2OPC allows an attacker well-formed untrusted certificate to be considered trusted
CVE-2026-9758
Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. a secondary CVSS source baseline 7.3; 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
- 7.3
- EG Score
- 7.3(high)
- EPSS
- 2.1%
- KEV
- Not listed
Published
June 10, 2026
Last Modified
June 10, 2026
Advisory Details (1)
Auto-updated Jun 11, 2026Certificate Trust List Check issue: well formed untrusted certificate might be considered trusted (#1770) · Issues · Systerel / S2OPC · GitLab
https://gitlab.com/systerel/S2OPC/-/work_items/1770Vendor Advisories for CVE-2026-9758(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 27× in last 7d / 117× 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.
Showing the most recent 100 of 117 total refreshes for this CVE.
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 02:38 UTCEG score recompute
- 2026-07-06 02:38 UTCGHSA enrichment
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- 2026-07-01 15:07 UTCEPSS rescore
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- 2026-07-01 10:20 UTCGHSA enrichment
- 2026-06-30 23:22 UTCEPSS rescore
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- 2026-06-30 08:33 UTCEG score recompute
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- 2026-06-29 14:06 UTCEPSS rescore
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- 2026-06-28 17:40 UTCEG score recompute
- 2026-06-28 17:40 UTCGHSA enrichment
- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 04:51 UTCEG score recompute
- 2026-06-28 04:51 UTCGHSA enrichment
- 2026-06-27 16:01 UTCEG score recompute
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- 2026-06-27 03:08 UTCEPSS rescore
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- 2026-06-26 14:19 UTCEG score recompute
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- 2026-06-25 13:50 UTCEPSS rescore
- 2026-06-25 12:28 UTCEG score recompute
- 2026-06-25 12:28 UTCGHSA enrichment
- 2026-06-24 23:38 UTCEG score recompute
- 2026-06-24 23:38 UTCGHSA enrichment
- 2026-06-24 14:05 UTCEPSS rescore
- 2026-06-24 10:49 UTCEG score recompute
- 2026-06-24 10:48 UTCGHSA enrichment
- 2026-06-23 21:33 UTCEPSS rescore
- 2026-06-23 21:21 UTCEG score recompute
- 2026-06-23 21:21 UTCGHSA enrichment
- 2026-06-23 08:31 UTCEG score recompute
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- 2026-06-22 18:25 UTCEG score recompute
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- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 04:10 UTCEG score recompute
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- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 10:06 UTCEG score recompute
- 2026-06-21 10:06 UTCGHSA enrichment
- 2026-06-21 01:59 UTCEPSS rescore
- 2026-06-20 21:13 UTCEG score recompute
- 2026-06-20 21:12 UTCGHSA enrichment
- 2026-06-20 07:14 UTCEG score recompute
- 2026-06-20 07:14 UTCGHSA enrichment
- 2026-06-19 19:26 UTCEPSS rescore
- 2026-06-19 18:05 UTCEG score recompute
- 2026-06-19 18:04 UTCGHSA enrichment
- 2026-06-19 04:51 UTCEG score recompute
- 2026-06-19 04:51 UTCGHSA enrichment
- 2026-06-18 15:53 UTCEG score recompute
- 2026-06-18 15:53 UTCGHSA enrichment
- 2026-06-18 03:02 UTCEG score recompute
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- 2026-06-17 17:53 UTCEPSS rescore
- 2026-06-17 14:12 UTCEG score recompute
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- 2026-06-16 12:31 UTCEG score recompute
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- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-14 21:56 UTCEG score recompute
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- 2026-06-14 09:07 UTCEG score recompute
- 2026-06-14 09:07 UTCGHSA enrichment
- 2026-06-13 23:00 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-295
Frequently asked(5)
What is CVE-2026-9758?
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How do I remediate CVE-2026-9758?
Dependency Blast Radius
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