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 verdictMitigate 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 services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

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
7.8HIGHmedium confidence
EG Risk
66
EG Risk 66/100CISA 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
Severity78% × 45%
Exploitation65% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
20%
EPSS %ILE
97th
KEV
Not listed

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

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation public PoC (EG-KEV: weaponized) · 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

December 6, 2017

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Sep 30, 2026
Fix referenced — no release confirmed yet.
generic

Android Security Bulletin—December 2017  |  Android Open Source Project

https://source.android.com/security/bulletin/2017-12-01
generic

CVE-2017-13160 - PSIRT.COM

http://www.securityfocus.com/bid/102109
generic

Packet Storm - Human Validation

http://packetstormsecurity.com/files/155189/Android-Janus-APK-Signature-Bypass.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 20× 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 133 total refreshes for this CVE.

  1. 2026-10-10 19:55 UTCEPSS rescore
  2. 2026-10-09 20:02 UTCEPSS rescore
  3. 2026-10-08 16:35 UTCEPSS rescore
  4. 2026-10-07 23:41 UTCEPSS rescore
  5. 2026-10-06 15:11 UTCEPSS rescore
  6. 2026-10-05 17:38 UTCEPSS rescore
  7. 2026-10-04 23:18 UTCEPSS rescore
  8. 2026-10-03 14:21 UTCEPSS rescore
  9. 2026-09-30 14:58 UTCEPSS rescore
  10. 2026-09-30 09:25 UTCEG score recompute
  11. 2026-09-28 13:45 UTCEPSS rescore
  12. 2026-09-27 13:40 UTCEPSS rescore
  13. 2026-09-26 15:53 UTCEPSS rescore
  14. 2026-09-24 13:59 UTCEPSS rescore
  15. 2026-09-19 15:36 UTCEPSS rescore
  16. 2026-09-18 19:22 UTCEPSS rescore
  17. 2026-09-17 19:22 UTCEPSS rescore
  18. 2026-09-15 03:05 UTCEPSS rescore
  19. 2026-09-12 14:55 UTCEPSS rescore
  20. 2026-09-11 09:31 UTCEPSS rescore
  21. 2026-09-10 09:26 UTCEPSS rescore
  22. 2026-09-04 13:56 UTCEPSS rescore
  23. 2026-09-04 05:01 UTCEPSS rescore
  24. 2026-09-02 14:07 UTCEPSS rescore
  25. 2026-09-01 13:48 UTCEPSS rescore
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  1. 2026-08-30 19:13 UTCEPSS rescore
  2. 2026-08-28 21:36 UTCEPSS rescore
  3. 2026-08-27 14:20 UTCEPSS rescore
  4. 2026-08-26 14:41 UTCEPSS rescore
  5. 2026-08-25 13:44 UTCEPSS rescore
  6. 2026-08-24 14:10 UTCEPSS rescore
  7. 2026-08-21 23:44 UTCEPSS rescore
  8. 2026-08-20 22:50 UTCEPSS rescore
  9. 2026-08-19 16:59 UTCEPSS rescore
  10. 2026-08-18 13:43 UTCEPSS rescore
  11. 2026-08-16 14:51 UTCEPSS rescore
  12. 2026-08-16 02:10 UTCEPSS rescore
  13. 2026-08-15 01:26 UTCEPSS rescore
  14. 2026-08-13 21:56 UTCEPSS rescore
  15. 2026-08-09 13:42 UTCEPSS rescore
  16. 2026-08-07 16:22 UTCEPSS rescore
  17. 2026-08-06 13:42 UTCEPSS rescore
  18. 2026-08-05 19:12 UTCEPSS rescore
  19. 2026-08-04 15:05 UTCEPSS rescore
  20. 2026-08-03 10:30 UTCEPSS rescore
  21. 2026-08-02 02:23 UTCEPSS rescore
  22. 2026-08-01 04:11 UTCEPSS rescore
  23. 2026-07-30 16:24 UTCEPSS rescore
  24. 2026-07-28 15:32 UTCEPSS rescore
  25. 2026-07-26 14:51 UTCEPSS rescore
  26. 2026-07-25 14:13 UTCEPSS rescore
  27. 2026-07-23 14:15 UTCEPSS rescore
  28. 2026-07-23 01:26 UTCEG score recompute
  29. 2026-07-22 22:05 UTCEG score recompute
  30. 2026-07-22 14:04 UTCEPSS rescore
  31. 2026-07-21 15:21 UTCEPSS rescore
  32. 2026-07-21 15:21 UTCEPSS rescore
  33. 2026-07-20 17:04 UTCEPSS rescore
  34. 2026-07-20 17:04 UTCEPSS rescore
  35. 2026-07-19 02:26 UTCEPSS rescore
  36. 2026-07-19 02:26 UTCEPSS rescore
  37. 2026-07-18 10:00 UTCEPSS rescore
  38. 2026-07-16 16:59 UTCEPSS rescore
  39. 2026-07-16 16:59 UTCEPSS rescore
  40. 2026-07-15 16:54 UTCEPSS rescore
  41. 2026-07-15 16:54 UTCEPSS rescore
  42. 2026-07-15 01:56 UTCEPSS rescore
  43. 2026-07-13 22:26 UTCEPSS rescore
  44. 2026-07-12 05:43 UTCEPSS rescore
  45. 2026-07-11 08:24 UTCEPSS rescore
  46. 2026-07-09 19:06 UTCEPSS rescore
  47. 2026-07-08 15:10 UTCEPSS rescore
  48. 2026-07-07 13:42 UTCEPSS rescore
  49. 2026-07-06 16:24 UTCEPSS rescore
  50. 2026-07-06 02:20 UTCEPSS rescore
  51. 2026-07-05 02:27 UTCEPSS rescore
  52. 2026-07-04 06:28 UTCEPSS rescore
  53. 2026-07-01 15:02 UTCEPSS rescore
  54. 2026-07-01 15:02 UTCEPSS rescore
  55. 2026-06-30 23:19 UTCEPSS rescore
  56. 2026-06-30 23:19 UTCEPSS rescore
  57. 2026-06-28 14:04 UTCEPSS rescore
  58. 2026-06-28 04:53 UTCEPSS rescore
  59. 2026-06-27 03:05 UTCEPSS rescore
  60. 2026-06-25 13:47 UTCEPSS rescore
  61. 2026-06-25 13:47 UTCEPSS rescore
  62. 2026-06-24 14:02 UTCEPSS rescore
  63. 2026-06-23 21:30 UTCEPSS rescore
  64. 2026-06-22 14:23 UTCEPSS rescore
  65. 2026-06-22 14:23 UTCEPSS rescore
  66. 2026-06-21 14:54 UTCEPSS rescore
  67. 2026-06-21 14:54 UTCEPSS rescore
  68. 2026-06-21 01:57 UTCEPSS rescore
  69. 2026-06-21 01:57 UTCEPSS rescore
  70. 2026-06-18 17:50 UTCEPSS rescore
  71. 2026-06-17 17:50 UTCEPSS rescore
  72. 2026-06-16 17:50 UTCEPSS rescore
  73. 2026-06-15 17:45 UTCEPSS rescore
  74. 2026-06-14 23:14 UTCEPSS rescore
  75. 2026-06-14 23:14 UTCEPSS rescore

Publicly available exploits

(9 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 1 Exploit-DB entry, 7 GitHub PoCs). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-47601✓ verified
    Published Nov 8, 2019

    Android Janus - APK Signature Bypass (Metasploit)

    Open source ↗
  • Metasploitexploit/android/local/janus✓ verified
    Published Nov 7, 2019

    Android Janus APK Signature bypass

    Open source ↗
  • GitHub PoCnictjh/threatDemos
    Published 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 PoChackerronin/Janus-Vulnerability-CVE-2017-13156-Exploit
    Published Feb 20, 2024

    Android Application Vulnerability Exploit

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

    Android Application Vulnerability Exploit

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

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

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

    CVE-2017-13156-Janus复现

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

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

    Open source ↗
  • GitHub PoCxyzAsian/Janus-CVE-2017-13156
    Published Dec 29, 2017
    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 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. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 20% probability of exploitation in the next 30 days (97th percentile of EPSS-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?
A fix for CVE-2017-13156 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2017-13156

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