# CVE-2017-13156 — Google Inc. Android

> As of 2026-11-05, CVE-2017-13156 is a HIGH-severity vulnerability in Google Inc. Android, CVSS v3.1 7.8, EPSS 20.4% (97.5th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2017-13156, most recently “GhostMap: Android ZIP-parsing flaw (libziparchive/libandroidfw mismatch) lets a malicious APK trigger a persistent system_server crash loop”.

**Last updated:** 2024-09-17

## What is CVE-2017-13156?

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.

The record classifies CVE-2017-13156 under weakness class [CWE-434](https://intel.threadlinqs.com/cwe/CWE-434). Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 3256 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.8 — HIGH (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 20.4% probability of exploitation in the next 30 days, higher than 97.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 9.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2017-12-06, last modified 2024-09-17

## Is CVE-2017-13156 being exploited?

Weaponised exploit code for CVE-2017-13156 is publicly available. 7 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

- [xyzAsian/Janus-CVE-2017-13156](https://github.com/xyzAsian/Janus-CVE-2017-13156) (github)
- [tea9/CVE-2017-13156-Janus](https://github.com/tea9/CVE-2017-13156-Janus) (github)
- [giacomoferretti/janus-toolkit](https://github.com/giacomoferretti/janus-toolkit) (github)
- [M507/CVE-2017-13156](https://github.com/M507/CVE-2017-13156) (github)
- [hackerronin/Janus-Vulnerability-CVE-2017-13156-Exploit](https://github.com/hackerronin/Janus-Vulnerability-CVE-2017-13156-Exploit) (github)
- [nictjh/threatDemos](https://github.com/nictjh/threatDemos) (github)
- [trickest/cve](https://github.com/trickest/cve/blob/main/2017/CVE-2017-13156.md) (trickest)

## Affected products and versions

- [Google Inc.](https://intel.threadlinqs.com/vendors/google): Android

## How to fix CVE-2017-13156

The record marks a vendor fix as available for CVE-2017-13156. Patch reference: [https://source.android.com/security/bulletin/2017-12-01](https://source.android.com/security/bulletin/2017-12-01). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2017-13156

1 tracked threat in the Threadlinqs corpus references CVE-2017-13156, either in the campaign’s CVE list or as an indicator on the campaign record.

- [GhostMap: Android ZIP-parsing flaw (libziparchive/libandroidfw mismatch) lets a malicious APK trigger a persistent system_server crash loop](https://intel.threadlinqs.com/threat/TL-2026-5312) — MEDIUM · 2026-11-05

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-11-05. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [source.android.com](https://source.android.com/security/bulletin/2017-12-01)

**Vulnerability database entry**

- [securityfocus.com — vdb entry](http://www.securityfocus.com/bid/102109)

**Other references**

- [packetstormsecurity.com](http://packetstormsecurity.com/files/155189/Android-Janus-APK-Signature-Bypass.html)

Canonical: https://intel.threadlinqs.com/cve/CVE-2017-13156
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