CVE-2017-15997
CVE-2017-15997 is a high-severity vulnerability in Nq Contacts Backup & Restore with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-327
- Affected product: Nq Contacts Backup & Restore
- Published:
- Last modified:
Description
In the "NQ Contacts Backup & Restore" application 1.1 for Android, RC4 encryption is used to secure the user password locally stored in shared preferences. Because there is a static RC4 key, an attacker can gain access to user credentials more easily by leveraging access to the preferences XML file.
Frequently asked questions
- What is CVE-2017-15997?
- In the "NQ Contacts Backup & Restore" application 1.1 for Android, RC4 encryption is used to secure the user password locally stored in shared preferences. Because there is a static RC4 key, an attacker can gain access to user credentials more easily by leveraging access to the preferences XML file.
- How severe is CVE-2017-15997?
- CVE-2017-15997 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-15997 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-15997?
- CVE-2017-15997 affects Nq Contacts Backup & Restore. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-15997?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-15997 published?
- CVE-2017-15997 was published on 2017-10-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:nq:contacts_backup_\&_restore:1.1:*:*:*:*:android:*:*
More vulnerabilities in Nq Contacts Backup & Restore
- CVE-2017-15999 — Critical (CVSS 9.8): In the "NQ Contacts Backup & Restore" application 1.1 for Android, no HTTPS is used for transmitting login and synced…
- CVE-2017-15998 — High (CVSS 7.5): In the "NQ Contacts Backup & Restore" application 1.1 for Android, DES encryption with a static key is used to secure…
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