An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. The issue involves the "Security" component. It allows remote attackers to bypass intended access restrictions by leveraging a successful result from a SecKeyRawVerify API call with an empty signature.
CVE-2017-2423
CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 75.1%
- KEV
- Not listed
Published
April 2, 2017
Last Modified
May 13, 2026
Advisory Details (4)
Auto-updated May 18, 2026No patch confirmed yet.
generic
About the security content of macOS Sierra 10.12.4, Security Update 2017-001 El Capitan, and Security Update 2017-001 Yosemite - Apple Support
https://support.apple.com/HT207615Data Freshness Timeline
(refreshed 11× in last 7d / 39× 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.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-05-20 07:47 UTCEG score recompute
- 2026-05-20 07:47 UTCGHSA enrichment
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- 2026-05-19 23:47 UTCEG score recompute
- 2026-05-19 23:47 UTCGHSA enrichment
- 2026-05-19 19:47 UTCEG score recompute
- 2026-05-19 19:47 UTCGHSA enrichment
- 2026-05-19 15:46 UTCEG score recompute
- 2026-05-19 15:46 UTCGHSA enrichment
- 2026-05-19 11:46 UTCEG score recompute
- 2026-05-19 11:46 UTCGHSA enrichment
- 2026-05-19 07:46 UTCEG score recompute
- 2026-05-19 07:45 UTCGHSA enrichment
- 2026-05-19 03:45 UTCEG score recompute
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- 2026-05-18 23:45 UTCEG score recompute
- 2026-05-18 21:30 UTCEPSS rescore
Frequently asked(5)
What is CVE-2017-2423?
CVE-2017-2423 is a critical vulnerability published on April 2, 2017. An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. The issue involves the "Security" component. It allows remote attackers to bypass intended access restrictions by leveraging a successful result from a SecKeyRawVerify API call with an…
When was CVE-2017-2423 disclosed?
CVE-2017-2423 was first published in the National Vulnerability Database on April 2, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-2423 actively exploited?
CVE-2017-2423 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-2423?
CVE-2017-2423 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-2423?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-2423, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2017-2423
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