CVE-2023-49897

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-12-21), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 51%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pct · epss highExposed: 0

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

An OS command injection vulnerability exists in AE1021PE firmware version 2.0.9 and earlier and AE1021 firmware version 2.0.9 and earlier. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
51%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

December 6, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Jun 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49897
generic

AE1021/AE1021PEのファームウェア 2.0.10 公開のお知らせ

https://www.fxc.jp/news/20231206
cisa Patch Available🔴 Active Exploitation

FXC AE1021/AE1021PE | CISA

FXC AE1021/AE1021PE | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/news-events/ics-advisories/icsa-23-355-01
generic🔴 Active Exploitation

JVNVU#92152057: FXC wireless LAN routers "AE1021PE" and "AE1021" vulnerable to OS command injection

https://jvn.jp/en/vu/JVNVU92152057/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 43× in last 7d / 211× 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 433 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2023-49897?
CVE-2023-49897 is a critical vulnerability published on December 6, 2023. An OS command injection vulnerability exists in AE1021PE firmware version 2.0.9 and earlier and AE1021 firmware version 2.0.9 and earlier. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.
When was CVE-2023-49897 disclosed?
CVE-2023-49897 was first published in the National Vulnerability Database on December 6, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-49897 actively exploited?
Yes. CISA added CVE-2023-49897 to the Known Exploited Vulnerabilities catalog on December 21, 2023, affecting FXC AE1021, AE1021PE. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-49897?
CVE-2023-49897 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-49897?
CVE-2023-49897 affects FXC AE1021, AE1021PE. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-49897?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-49897, 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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