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: 0.3%CVSS: 2.4Exploit: None knownExposed services: Not assessed

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

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
2.4LOWmedium confidence
EG Risk
11
EG Risk 11/100CISA SSVC

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%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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 10× in last 7d / 38× 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. 2026-10-05 17:42 UTCEPSS rescore
  2. 2026-10-04 23:21 UTCEPSS rescore
  3. 2026-10-03 16:48 UTCEG score recompute
  4. 2026-10-03 16:48 UTCGHSA enrichment
  5. 2026-10-03 14:25 UTCEPSS rescore
  6. 2026-10-01 19:49 UTCEPSS rescore
  7. 2026-09-30 15:02 UTCEPSS rescore
  8. 2026-09-30 08:57 UTCEG score recompute
  9. 2026-09-30 08:57 UTCGHSA enrichment
  10. 2026-09-29 15:20 UTCEPSS rescore
  11. 2026-09-28 13:51 UTCEPSS rescore
  12. 2026-09-27 13:47 UTCEPSS rescore
  13. 2026-09-27 03:15 UTCEG score recompute
  14. 2026-09-27 03:15 UTCGHSA enrichment
  15. 2026-09-26 15:58 UTCEPSS rescore
  16. 2026-09-23 14:45 UTCEG score recompute
  17. 2026-09-23 14:45 UTCGHSA enrichment
  18. 2026-09-20 09:01 UTCEG score recompute
  19. 2026-09-20 09:01 UTCGHSA enrichment
  20. 2026-09-18 19:27 UTCEPSS rescore
  21. 2026-09-17 01:21 UTCEG score recompute
  22. 2026-09-17 01:21 UTCGHSA enrichment
  23. 2026-09-16 14:07 UTCEPSS rescore
  24. 2026-09-16 05:14 UTCEPSS rescore
  25. 2026-09-13 19:38 UTCEG score recompute
Show 40 more
  1. 2026-09-13 19:38 UTCGHSA enrichment
  2. 2026-09-13 16:46 UTCEPSS rescore
  3. 2026-09-12 15:00 UTCEPSS rescore
  4. 2026-09-11 14:52 UTCEPSS rescore
  5. 2026-09-11 09:36 UTCEPSS rescore
  6. 2026-09-10 13:55 UTCEG score recompute
  7. 2026-09-10 13:55 UTCGHSA enrichment
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-08 22:00 UTCEPSS rescore
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-07 08:12 UTCEG score recompute
  12. 2026-09-07 08:12 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-04 02:09 UTCEG score recompute
  16. 2026-09-04 02:09 UTCGHSA enrichment
  17. 2026-09-02 14:11 UTCEPSS rescore
  18. 2026-09-01 13:53 UTCEPSS rescore
  19. 2026-09-01 04:39 UTCEPSS rescore
  20. 2026-08-31 20:25 UTCGHSA enrichment
  21. 2026-08-31 14:47 UTCEG score recompute
  22. 2026-08-31 14:47 UTCGHSA enrichment
  23. 2026-08-30 19:17 UTCEPSS rescore
  24. 2026-08-28 21:41 UTCEPSS rescore
  25. 2026-08-28 08:56 UTCEG score recompute
  26. 2026-08-28 08:55 UTCGHSA enrichment
  27. 2026-08-27 14:25 UTCEPSS rescore
  28. 2026-08-26 14:46 UTCEPSS rescore
  29. 2026-08-25 13:48 UTCEPSS rescore
  30. 2026-08-25 03:07 UTCEG score recompute
  31. 2026-08-25 03:07 UTCGHSA enrichment
  32. 2026-08-23 00:19 UTCEPSS rescore
  33. 2026-08-21 23:49 UTCEPSS rescore
  34. 2026-08-21 21:25 UTCEG score recompute
  35. 2026-08-21 21:25 UTCGHSA enrichment
  36. 2026-08-21 20:20 UTCEG score recompute
  37. 2026-08-21 20:20 UTCGHSA enrichment
  38. 2026-08-20 17:34 UTCEG score recompute
  39. 2026-08-20 16:33 UTCEG score recompute
  40. 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 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 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18283?
CVE-2026-18283 has a CVSS base score of 2.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18283?
No fix for CVE-2026-18283 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-18283 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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