What is CVE-2017-15998?

CVE-2017-15998 is a high-severity vulnerability in Nq Contacts Backup \& Restore, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2017-10-29.

How severe is CVE-2017-15998?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Nq Contacts Backup \& Restore

CVE-2017-15998

In the "NQ Contacts Backup & Restore" application 1.1 for Android, DES encryption with a static key is used to secure transmitted contact data. This makes it easier for remote attackers to obtain cleartext information by sniffing the network.

Vulnerability class: POODLE (CVE-2014-3566)

Published 2017-10-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Nq Contacts Backup \& Restore — versions 1.1

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

1337sec.blogspot.de/2017/10/auditing-nq-contacts-backup-restore-11.html (Third Party Advisory)

Frequently asked questions

What is CVE-2017-15998?: CVE-2017-15998 is a high-severity vulnerability in Nq Contacts Backup \& Restore, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2017-10-29.
How severe is CVE-2017-15998?: High severity. CVSS v3 base score is 7.5 out of 10.