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: 0

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

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
5.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity53% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
29%
EPSS %ILE
98%
KEV
Not listed

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 11× in last 7d / 36× 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. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-25 14:14 UTCEPSS rescore
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  6. 2026-07-23 01:48 UTCEG score recompute
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  59. 2026-05-28 13:43 UTCEPSS rescore
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  61. 2026-05-27 13:39 UTCEPSS rescore
  62. 2026-05-27 03:09 UTCEG score recompute
  63. 2026-05-27 03:09 UTCGHSA enrichment
  64. 2026-05-26 13:42 UTCEPSS rescore
  65. 2026-05-26 13:42 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 in the National Vulnerability Database 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, which ranks it in the top 2.1% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-10136, 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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