CVE-2026-18283

LOWPre-NVD 2.42.4—
EchelonGraph scoreMEDIUM confidence

Score 2.4 from GitHub Security Advisory (severity: LOW) published 2026-08-20. a secondary CVSS source baseline 2.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
2.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 2.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability. This vulnerability allows physically present attackers to bypass authorization on affected installations on Sony XAV-9500ES devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the udev rules. A crafted USB device connected to the system can trigger instantiation of otherwise restricted USB device types. An attacker can leverage this vulnerability to bypass authorization on the system. Was ZDI-CAN-28992.

CVSS v3
2.4
EG Score
2.4(medium)
EG Risk
11(Track)
EG Risk 11/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity24% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 31, 2026

References (2)

Vendor Advisories for CVE-2026-18283(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 9× in last 7d / 45× 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.

  1. 2026-09-20 09:01 UTCEG score recompute
  2. 2026-09-20 09:01 UTCGHSA enrichment
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-17 01:21 UTCEG score recompute
  5. 2026-09-17 01:21 UTCGHSA enrichment
  6. 2026-09-16 14:07 UTCEPSS rescore
  7. 2026-09-16 05:14 UTCEPSS rescore
  8. 2026-09-13 19:38 UTCEG score recompute
  9. 2026-09-13 19:38 UTCGHSA enrichment
  10. 2026-09-13 16:46 UTCEPSS rescore
  11. 2026-09-12 15:00 UTCEPSS rescore
  12. 2026-09-11 14:52 UTCEPSS rescore
  13. 2026-09-11 09:36 UTCEPSS rescore
  14. 2026-09-10 13:55 UTCEG score recompute
  15. 2026-09-10 13:55 UTCGHSA enrichment
  16. 2026-09-10 09:34 UTCEPSS rescore
  17. 2026-09-08 22:00 UTCEPSS rescore
  18. 2026-09-07 16:01 UTCEPSS rescore
  19. 2026-09-07 08:12 UTCEG score recompute
  20. 2026-09-07 08:12 UTCGHSA enrichment
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-04 05:06 UTCEPSS rescore
  23. 2026-09-04 02:09 UTCEG score recompute
  24. 2026-09-04 02:09 UTCGHSA enrichment
  25. 2026-09-02 14:11 UTCEPSS rescore
Show 23 more
  1. 2026-09-01 13:53 UTCEPSS rescore
  2. 2026-09-01 04:39 UTCEPSS rescore
  3. 2026-08-31 20:25 UTCGHSA enrichment
  4. 2026-08-31 14:47 UTCEG score recompute
  5. 2026-08-31 14:47 UTCGHSA enrichment
  6. 2026-08-30 19:17 UTCEPSS rescore
  7. 2026-08-28 21:41 UTCEPSS rescore
  8. 2026-08-28 08:56 UTCEG score recompute
  9. 2026-08-28 08:55 UTCGHSA enrichment
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-26 14:46 UTCEPSS rescore
  12. 2026-08-25 13:48 UTCEPSS rescore
  13. 2026-08-25 03:07 UTCEG score recompute
  14. 2026-08-25 03:07 UTCGHSA enrichment
  15. 2026-08-23 00:19 UTCEPSS rescore
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 21:25 UTCEG score recompute
  18. 2026-08-21 21:25 UTCGHSA enrichment
  19. 2026-08-21 20:20 UTCEG score recompute
  20. 2026-08-21 20:20 UTCGHSA enrichment
  21. 2026-08-20 17:34 UTCEG score recompute
  22. 2026-08-20 16:33 UTCEG score recompute
  23. 2026-08-20 16:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18283?
CVE-2026-18283 is a low vulnerability published on August 20, 2026. Sony XAV-9500ES udev USB Rules Authorization Bypass Vulnerability. This vulnerability allows physically present attackers to bypass authorization on affected installations on Sony XAV-9500ES devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the…
When was CVE-2026-18283 disclosed?
CVE-2026-18283 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18283 actively exploited?
CVE-2026-18283 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 86.3% of all scored CVEs.
What is the CVSS score of CVE-2026-18283?
CVE-2026-18283 has a CVSS v3 base score of 2.4 (NVD).
How do I remediate CVE-2026-18283?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18283, 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-2026-18283

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