CVE-2017-13108: DFNDR Security Antivirus, Anti-hacking & Cleaner, 5.0.9, 2017-11-01, Android application uses a hard-coded key

This month

HIGH 7.5REMOTEDOWNGRADE

CVE-2017-13108 is a high-severity flaw (CVSS 7.5) affecting dfndr security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DFNDR Security Antivirus, Anti-hacking & Cleaner, 5.0.9, 2017-11-01, Android application uses a hard-coded key for encryption. Data stored using this key can be decrypted by anyone able to access this key.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-798
Published	2018-08-15
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: psafe

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-08-15 22:29 UTCPublished CVE record published
2026-06-17 01:04 UTCUpdated Record last modified

psafe dfndr security DOWNGRADE

Affected: 5.0.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.9

1. Check installed version

apt-cache policy dfndr-security || rpm -q dfndr-security || dfndr-security --version

2. No fixed release: DOWNGRADE to a release before 5.0.9 (Debian / Ubuntu)

apt-cache madison dfndr-security sudo apt install dfndr-security=<VERSION_BEFORE_5.0.9> sudo apt-mark hold dfndr-security

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dfndr-security sudo dnf downgrade dfndr-security-<VERSION_BEFORE_5.0.9> sudo dnf versionlock add dfndr-security

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-13108?

dfndr security: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-13108 being exploited?

CVE-2017-13108 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-13108 affect?

CVE-2017-13108 affects dfndr security. Severity is high (CVSS 7.5). DFNDR Security Antivirus, Anti-hacking & Cleaner, 5.0.9, 2017-11-01, Android application uses a hard-coded key for encryption. Data stored using this key can be decrypted by anyone able to access this key.

How urgent is CVE-2017-13108?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities

References

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