CVE-2022-36053

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.6% (47th percentile of EPSS-scored CVEs). 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
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.9Exploit: None knownExposed services: Not assessed

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

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The low-power IPv6 network stack of Contiki-NG has a buffer module (os/net/ipv6/uipbuf.c) that processes IPv6 extension headers in incoming data packets. As part of this processing, the function uipbuf_get_next_header casts a pointer to a uip_ext_hdr structure into the packet buffer at different offsets where extension headers are expected to be found, and then reads from this structure. Because of a lack of bounds checking, the casting can be done so that the structure extends beyond the packet's end. Hence, with a carefully crafted packet, it is possible to cause the Contiki-NG system to read data outside the packet buffer. A patch that fixes the vulnerability is included in Contiki-NG 4.8.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100CISA 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
Severity59% × 45%
Exploitation1% × 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
0.6%
EPSS %ILE
47th
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

September 1, 2022

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 / 25× 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 179 total refreshes for this CVE.

  1. 2026-10-03 14:23 UTCEPSS rescore
  2. 2026-10-02 16:23 UTCEPSS rescore
  3. 2026-10-01 19:47 UTCEPSS rescore
  4. 2026-09-30 15:59 UTCEG score recompute
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  7. 2026-09-27 13:42 UTCEPSS rescore
  8. 2026-09-26 00:22 UTCEPSS rescore
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  10. 2026-09-24 12:37 UTCOSV refresh
  11. 2026-09-22 14:45 UTCEPSS rescore
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  24. 2026-09-05 15:25 UTCEPSS rescore
  25. 2026-09-05 05:14 UTCOSV refresh
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  1. 2026-09-04 13:57 UTCEPSS rescore
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  3. 2026-09-02 14:09 UTCEPSS rescore
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  5. 2026-08-30 19:14 UTCEPSS rescore
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  7. 2026-08-28 21:38 UTCEPSS rescore
  8. 2026-08-27 14:22 UTCEPSS rescore
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  17. 2026-08-18 15:58 UTCOSV refresh
  18. 2026-08-18 13:45 UTCEPSS rescore
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  20. 2026-08-16 14:53 UTCEPSS rescore
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  22. 2026-08-15 01:27 UTCEPSS rescore
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  25. 2026-08-12 13:48 UTCEPSS rescore
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  27. 2026-08-10 14:08 UTCEPSS rescore
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  29. 2026-08-08 16:34 UTCEPSS rescore
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  36. 2026-08-03 11:27 UTCOSV refresh
  37. 2026-08-02 02:24 UTCEPSS rescore
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  46. 2026-07-24 14:15 UTCEPSS rescore
  47. 2026-07-24 14:15 UTCEPSS rescore
  48. 2026-07-23 14:16 UTCEPSS rescore
  49. 2026-07-23 02:12 UTCEG score recompute
  50. 2026-07-22 22:59 UTCEG score recompute
  51. 2026-07-22 14:06 UTCEPSS rescore
  52. 2026-07-22 14:06 UTCEPSS rescore
  53. 2026-07-21 15:23 UTCEPSS rescore
  54. 2026-07-21 15:22 UTCEPSS rescore
  55. 2026-07-20 17:05 UTCEPSS rescore
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  61. 2026-07-16 21:04 UTCOSV refresh
  62. 2026-07-16 17:00 UTCEPSS rescore
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  67. 2026-07-13 22:28 UTCEPSS rescore
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  73. 2026-07-11 08:25 UTCEPSS rescore
  74. 2026-07-09 19:08 UTCEPSS rescore
  75. 2026-07-08 15:12 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-36053?
CVE-2022-36053 is a medium vulnerability published on September 1, 2022. Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The low-power IPv6 network stack of Contiki-NG has a buffer module (os/net/ipv6/uipbuf.c) that processes IPv6 extension headers in incoming data packets. As part of this processing, the function…
When was CVE-2022-36053 disclosed?
CVE-2022-36053 was first published on September 1, 2022, 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-2022-36053 actively exploited?
CVE-2022-36053 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-36053?
CVE-2022-36053 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2022-36053?
No fix for CVE-2022-36053 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.

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