CVE-2018-0249

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.3Exploit: None knownExposed: 0

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

A vulnerability when handling incoming 802.11 Association Requests for Cisco Aironet 1800 Series Access Point (APs) on Qualcomm Atheros (QCA) based hardware platforms could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. A successful exploit could prevent new clients from joining the AP. The vulnerability is due to incorrect handling of malformed or invalid 802.11 Association Requests. An attacker could exploit this vulnerability by sending a malformed stream of 802.11 Association Requests to the local interface of the targeted device. A successful exploit could allow the attacker to cause a DoS situation on an affected system, causing new client 802.11 Association Requests to fail. This vulnerability affects the following Cisco products: Aironet 1560 Series Access Points, Aironet 1810 Series OfficeExtend Access Points, Aironet 1810w Series Access Points, Aironet 1815 Series Access Points, Aironet 1830 Series Access Points, Aironet 1850 Series Access Points, Aironet 2800 Series Access Points, Aironet 3800 Series Access Points. Cisco Bug IDs: CSCvg02116.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
Severity43% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

May 2, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 21× 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 131 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2018-0249?
CVE-2018-0249 is a medium vulnerability published on May 2, 2018. A vulnerability when handling incoming 802.11 Association Requests for Cisco Aironet 1800 Series Access Point (APs) on Qualcomm Atheros (QCA) based hardware platforms could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. A successful…
When was CVE-2018-0249 disclosed?
CVE-2018-0249 was first published in the National Vulnerability Database on May 2, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-0249 actively exploited?
CVE-2018-0249 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 53.3% of all scored CVEs.
What is the CVSS score of CVE-2018-0249?
CVE-2018-0249 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2018-0249?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-0249, 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.

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