CVE-2020-10136

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 29%CVSS: 5.3Exploit: Elevated riskExposed services: Not assessed

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

IP-in-IP protocol specifies IP Encapsulation within IP standard (RFC 2003, STD 1) that decapsulate and route IP-in-IP traffic is vulnerable to spoofing, access-control bypass and other unexpected behavior due to the lack of validation to verify network packets before decapsulation and routing.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100CISA 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
Severity53% × 45%
Exploitation40% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
29%
EPSS %ILE
98th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

June 2, 2020

Last Modified

November 3, 2025

References (11)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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 142 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCPapayaJackal/ipeeyoupeewepee
    First seen Jan 21, 2025

    Scanner and attack suite for hosts that forward unauthenticated packets via IPIP and GRE protocols. (CVE-2020-10136 CVE-2024-7595)

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-10136?
CVE-2020-10136 is a medium vulnerability published on June 2, 2020. IP-in-IP protocol specifies IP Encapsulation within IP standard (RFC 2003, STD 1) that decapsulate and route IP-in-IP traffic is vulnerable to spoofing, access-control bypass and other unexpected behavior due to the lack of validation to verify network packets before decapsulation and routing.
When was CVE-2020-10136 disclosed?
CVE-2020-10136 was first published on June 2, 2020, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-10136 actively exploited?
CVE-2020-10136 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-10136?
CVE-2020-10136 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2020-10136?
No fix for CVE-2020-10136 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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