CVE-2013-6775: The Chainfire SuperSU package before 1.69 for Android allows attackers to gain privileges via the (1) backtick

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HIGH 10.0DOWNGRADE

CVE-2013-6775 is a high-severity flaw (CVSS 10.0) affecting supersu. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Chainfire SuperSU package before 1.69 for Android allows attackers to gain privileges via the (1) backtick or (2) $() type of shell metacharacters in the -c option to /system/xbin/su.

Why this priority

Critical severity
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-264
Published	2014-03-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: chainfire

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

Am I affected?

Timeline

2014-03-31 14:58 UTCPublished CVE record published
2026-06-17 00:00 UTCUpdated Record last modified

chainfire supersu DOWNGRADE

Affected: 1.69

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.69

1. Check installed version

apt-cache policy supersu || rpm -q supersu || supersu --version

2. No fixed release: DOWNGRADE to a release before 1.69 (Debian / Ubuntu)

apt-cache madison supersu sudo apt install supersu=<VERSION_BEFORE_1.69> sudo apt-mark hold supersu

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

dnf --showduplicates list supersu sudo dnf downgrade supersu-<VERSION_BEFORE_1.69> sudo dnf versionlock add supersu

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-2013-6775?

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

Is CVE-2013-6775 being exploited?

CVE-2013-6775 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-2013-6775 affect?

CVE-2013-6775 affects supersu. Severity is high (CVSS 10.0). The Chainfire SuperSU package before 1.69 for Android allows attackers to gain privileges via the (1) backtick or (2) $() type of shell metacharacters in the -c option to /system/xbin/su.

How urgent is CVE-2013-6775?

Priority 59/100. Critical severity; Public exploit reference

Software pages

Android vulnerabilities

Related CVEs

CVE-2013-6774 HIGH 10.0 DOWNGRADE DOWNGRADE Untrusted search path vulnerability in the ChainsDD Superuser package 3.1.3 for Android 4.2.x and earlier, Cya

References

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