CVE-2017-15999

9.8
CRITICALCVSS v3.1 Base Score
0.69%
LOW RiskEPSS (52nd percentile)

In the "NQ Contacts Backup & Restore" application 1.1 for Android, no HTTPS is used for transmitting login and synced user data. When logging in, the username is transmitted in cleartext along with an SHA-1 hash of the password. The attacker can either crack this hash or use it for further attacks where only the hash value is required.

Published: 10/29/2017
Modified: 6/17/2026
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Vulnerability Summary

CVSS v3 Score

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2 Score

5

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Score (Exploitation Probability)

0.69%LOW Exploitation Risk
52nd percentile

This vulnerability has a 0.69% probability of being exploited in the next 30 days, ranking higher than 52% of all scored CVEs.

CWE Classification

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