CVE-2026-13308

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-29. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of WebSocket messages related to the OCPP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29113.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (1)

Auto-updated Jul 29, 2026
No patch confirmed yet.
generic

ZDI-26-437 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-437/

Vendor Advisories for CVE-2026-13308(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 20× in last 7d / 112× 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 125 total refreshes for this CVE.

  1. 2026-08-30 01:21 UTCEPSS rescore
  2. 2026-08-29 23:06 UTCEG score recompute
  3. 2026-08-29 23:06 UTCGHSA enrichment
  4. 2026-08-28 21:40 UTCEPSS rescore
  5. 2026-08-27 23:45 UTCEG score recompute
  6. 2026-08-27 23:45 UTCGHSA enrichment
  7. 2026-08-27 14:24 UTCEPSS rescore
  8. 2026-08-27 12:12 UTCGHSA enrichment
  9. 2026-08-27 00:51 UTCEG score recompute
  10. 2026-08-27 00:51 UTCGHSA enrichment
  11. 2026-08-26 13:32 UTCGHSA enrichment
  12. 2026-08-26 01:43 UTCGHSA enrichment
  13. 2026-08-25 14:26 UTCEG score recompute
  14. 2026-08-25 14:26 UTCGHSA enrichment
  15. 2026-08-25 13:48 UTCEPSS rescore
  16. 2026-08-25 03:09 UTCGHSA enrichment
  17. 2026-08-24 15:51 UTCEG score recompute
  18. 2026-08-24 15:51 UTCGHSA enrichment
  19. 2026-08-24 04:33 UTCGHSA enrichment
  20. 2026-08-23 17:15 UTCGHSA enrichment
  21. 2026-08-23 05:58 UTCEG score recompute
  22. 2026-08-23 05:58 UTCGHSA enrichment
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-22 18:40 UTCGHSA enrichment
  25. 2026-08-22 07:23 UTCEG score recompute
Show 75 more
  1. 2026-08-22 07:23 UTCGHSA enrichment
  2. 2026-08-21 23:48 UTCEPSS rescore
  3. 2026-08-21 20:05 UTCGHSA enrichment
  4. 2026-08-21 08:48 UTCEG score recompute
  5. 2026-08-21 08:48 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 21:30 UTCGHSA enrichment
  8. 2026-08-20 10:13 UTCGHSA enrichment
  9. 2026-08-19 22:56 UTCEG score recompute
  10. 2026-08-19 22:56 UTCGHSA enrichment
  11. 2026-08-19 17:03 UTCEPSS rescore
  12. 2026-08-19 11:38 UTCGHSA enrichment
  13. 2026-08-19 00:20 UTCEG score recompute
  14. 2026-08-19 00:20 UTCGHSA enrichment
  15. 2026-08-18 13:48 UTCEPSS rescore
  16. 2026-08-18 13:03 UTCGHSA enrichment
  17. 2026-08-18 01:22 UTCGHSA enrichment
  18. 2026-08-17 14:03 UTCEG score recompute
  19. 2026-08-17 14:03 UTCGHSA enrichment
  20. 2026-08-17 02:46 UTCGHSA enrichment
  21. 2026-08-16 15:28 UTCEG score recompute
  22. 2026-08-16 15:28 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 04:11 UTCEG score recompute
  25. 2026-08-16 04:11 UTCGHSA enrichment
  26. 2026-08-16 02:14 UTCEPSS rescore
  27. 2026-08-15 16:54 UTCGHSA enrichment
  28. 2026-08-15 05:37 UTCEG score recompute
  29. 2026-08-15 05:37 UTCGHSA enrichment
  30. 2026-08-15 01:30 UTCEPSS rescore
  31. 2026-08-14 18:19 UTCGHSA enrichment
  32. 2026-08-14 07:02 UTCEG score recompute
  33. 2026-08-14 07:02 UTCGHSA enrichment
  34. 2026-08-13 22:00 UTCEPSS rescore
  35. 2026-08-13 19:45 UTCGHSA enrichment
  36. 2026-08-13 08:27 UTCGHSA enrichment
  37. 2026-08-12 21:10 UTCEG score recompute
  38. 2026-08-12 21:10 UTCGHSA enrichment
  39. 2026-08-12 13:50 UTCEPSS rescore
  40. 2026-08-12 09:50 UTCGHSA enrichment
  41. 2026-08-11 22:33 UTCEG score recompute
  42. 2026-08-11 22:33 UTCGHSA enrichment
  43. 2026-08-11 13:42 UTCEPSS rescore
  44. 2026-08-11 11:16 UTCEG score recompute
  45. 2026-08-11 11:16 UTCGHSA enrichment
  46. 2026-08-10 23:59 UTCEPSS rescore
  47. 2026-08-10 23:59 UTCGHSA enrichment
  48. 2026-08-10 12:42 UTCGHSA enrichment
  49. 2026-08-10 01:24 UTCGHSA enrichment
  50. 2026-08-09 14:07 UTCEG score recompute
  51. 2026-08-09 14:07 UTCGHSA enrichment
  52. 2026-08-09 13:46 UTCEPSS rescore
  53. 2026-08-09 02:50 UTCEG score recompute
  54. 2026-08-09 02:50 UTCGHSA enrichment
  55. 2026-08-08 16:37 UTCEPSS rescore
  56. 2026-08-08 15:33 UTCGHSA enrichment
  57. 2026-08-08 04:15 UTCGHSA enrichment
  58. 2026-08-07 16:58 UTCEG score recompute
  59. 2026-08-07 16:58 UTCGHSA enrichment
  60. 2026-08-07 05:41 UTCGHSA enrichment
  61. 2026-08-06 18:24 UTCEG score recompute
  62. 2026-08-06 18:24 UTCGHSA enrichment
  63. 2026-08-06 13:46 UTCEPSS rescore
  64. 2026-08-06 07:07 UTCGHSA enrichment
  65. 2026-08-05 19:50 UTCEG score recompute
  66. 2026-08-05 19:50 UTCGHSA enrichment
  67. 2026-08-05 19:17 UTCEPSS rescore
  68. 2026-08-05 08:33 UTCGHSA enrichment
  69. 2026-08-04 21:14 UTCEG score recompute
  70. 2026-08-04 21:14 UTCGHSA enrichment
  71. 2026-08-04 15:09 UTCEPSS rescore
  72. 2026-08-04 10:38 UTCEPSS rescore
  73. 2026-08-04 09:56 UTCGHSA enrichment
  74. 2026-08-03 22:16 UTCGHSA enrichment
  75. 2026-08-03 10:58 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-13308?
CVE-2026-13308 is a high vulnerability published on July 29, 2026. Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this…
When was CVE-2026-13308 disclosed?
CVE-2026-13308 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13308 actively exploited?
CVE-2026-13308 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.5% of all scored CVEs.
What is the CVSS score of CVE-2026-13308?
CVE-2026-13308 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-13308?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13308, 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

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