CVE-2023-24819

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.5%, top 18% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in an out of bounds write in the packet buffer. The overflow can be used to corrupt other packets and the allocator metadata. Corrupting a pointer will easily lead to denial of service. While carefully manipulating the allocator metadata gives an attacker the possibility to write data to arbitrary locations and thus execute arbitrary code. Version 2022.10 fixes this issue. As a workaround, disable support for fragmented IP datagrams or apply the patches manually.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
58.4%
KEV
Not listed

Published

April 24, 2023

Last Modified

February 4, 2025

Advisory Details (3)

Auto-updated Jun 21, 2026
Patch available. Sources: github_pr, github.
github Patch Available

Buffer Overflow during IPHC receive · Advisory · RIOT-OS/RIOT · GitHub

https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-fv97-2448-gcf6
github_pr

gnrc_sixlowpan: Various hardening fixes [backport 2022.10]

Fix merged in RIOT-OS/RIOT PR #18820 on 2022-10-29 — awaiting tagged release

https://github.com/RIOT-OS/RIOT/pull/18820/commits/da63e45ee94c03a2e08625b04ea618653eab4a9f
github_pr

gnrc_sixlowpan: Various hardening fixes

Fix merged in RIOT-OS/RIOT PR #18817 on 2022-10-29 — awaiting tagged release

https://github.com/RIOT-OS/RIOT/pull/18817/commits/73615161c01fcfbbc7216cf502cabb12c1598ee4

Weakness Classification(2)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-24819?
CVE-2023-24819 is a critical vulnerability published on April 24, 2023. RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in an out of bounds write in the packet buffer. The overflow can be used…
When was CVE-2023-24819 disclosed?
CVE-2023-24819 was first published in the National Vulnerability Database on April 24, 2023, with the most recent update on February 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-24819 actively exploited?
CVE-2023-24819 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 58.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-24819?
CVE-2023-24819 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-24819?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-24819, 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-2023-24819

Explore →

Is Your Infrastructure Affected by CVE-2023-24819?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs