CVE-2017-13156

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, public exploit)
CISA-KEV: Not listedEPSS PROB: 20%CVSS: 7.8Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · public exploitExposed: 0

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

An elevation of privilege vulnerability in the Android system (art). Product: Android. Versions: 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID A-64211847.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
66(Track)
EG Risk 66/100SSVC: 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
Severity78% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
20%
EPSS %ILE
97%
KEV
Not listed

Published

December 6, 2017

Last Modified

June 17, 2026

References (6)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 34× 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 14:13 UTCEPSS rescore
  3. 2026-07-23 14:15 UTCEPSS rescore
  4. 2026-07-23 01:26 UTCEG score recompute
  5. 2026-07-22 22:05 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
  7. 2026-07-21 15:21 UTCEPSS rescore
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  1. 2026-07-06 02:20 UTCEPSS rescore
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  4. 2026-07-01 15:02 UTCEPSS rescore
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  6. 2026-06-30 23:19 UTCEPSS rescore
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  8. 2026-06-28 14:04 UTCEPSS rescore
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  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-25 13:47 UTCEPSS rescore
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  17. 2026-06-21 14:54 UTCEPSS rescore
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  21. 2026-06-18 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-16 17:50 UTCEPSS rescore
  24. 2026-06-15 17:45 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
  26. 2026-06-14 23:14 UTCEPSS rescore
  27. 2026-06-13 22:57 UTCEPSS rescore
  28. 2026-06-12 23:09 UTCEPSS rescore
  29. 2026-06-10 22:15 UTCEPSS rescore
  30. 2026-06-07 15:22 UTCEPSS rescore
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  32. 2026-06-06 13:45 UTCEPSS rescore
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  34. 2026-06-05 22:44 UTCEPSS rescore
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  37. 2026-06-04 13:10 UTCEPSS rescore
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  39. 2026-06-02 20:11 UTCEPSS rescore
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  41. 2026-06-01 13:49 UTCEPSS rescore
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  43. 2026-05-31 00:14 UTCEPSS rescore
  44. 2026-05-29 13:41 UTCEPSS rescore
  45. 2026-05-28 13:42 UTCEPSS rescore
  46. 2026-05-28 13:42 UTCEPSS rescore
  47. 2026-05-27 13:38 UTCEPSS rescore
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  49. 2026-05-26 07:17 UTCEPSS rescore
  50. 2026-05-26 07:17 UTCEPSS rescore
  51. 2026-05-22 21:15 UTCEPSS rescore
  52. 2026-05-22 21:15 UTCEPSS rescore
  53. 2026-05-22 21:15 UTCEPSS rescore
  54. 2026-05-22 07:28 UTCEG score recompute
  55. 2026-05-22 07:28 UTCGHSA enrichment
  56. 2026-05-20 22:37 UTCEPSS rescore
  57. 2026-05-20 22:37 UTCEPSS rescore
  58. 2026-05-18 21:30 UTCEPSS rescore
  59. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(8 references)

Working exploit code is in the public domain (1 Metasploit module) (6 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCnictjh/threatDemos
    First seen Aug 1, 2025

    Comprehensive Android security vulnerability demonstrations featuring CVE-2017-13156 (Janus), broadcast receiver exploitation, external storage threats, and rooted device attacks. Educational PoCs with working code, exploitation scripts, and security controls for developers and researchers. To be updated...

    Open source ↗
  • GitHub PoCl1ackerronin/Janus-Vulnerability-CVE-2017-13156-Exploit
    First seen Feb 20, 2024

    Android Application Vulnerability Exploit

    Open source ↗
  • GitHub PoCM507/CVE-2017-13156
    First seen Jun 10, 2022

    To determine if an APK is vulnerable to CVE-2017-13156

    Open source ↗
  • GitHub PoCtea9/CVE-2017-13156-Janus
    First seen Sep 3, 2020

    CVE-2017-13156-Janus复现

    Open source ↗
  • Exploit-DBEDB-47601✓ verified
    First seen Nov 8, 2019

    Android Janus - APK Signature Bypass (Metasploit)

    Open source ↗
  • GitHub PoCgiacomoferretti/janus-toolkit
    First seen Aug 25, 2019

    A collection of tools for the Janus exploit [CVE-2017-13156].

    Open source ↗
  • GitHub PoCxyzAsian/Janus-CVE-2017-13156
    First seen Dec 29, 2017
    Open source ↗
  • Metasploitexploit/android/local/janus✓ verified
    First seen Jul 31, 2017

    Android Janus APK Signature bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-13156?
CVE-2017-13156 is a high vulnerability published on December 6, 2017. An elevation of privilege vulnerability in the Android system (art). Product: Android. Versions: 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID A-64211847.
When was CVE-2017-13156 disclosed?
CVE-2017-13156 was first published in the National Vulnerability Database on December 6, 2017, 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-2017-13156 actively exploited?
CVE-2017-13156 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20% probability of exploitation in the next 30 days, which ranks it in the top 2.8% of all scored CVEs.
What is the CVSS score of CVE-2017-13156?
CVE-2017-13156 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2017-13156?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-13156, 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

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