CVE-2019-11836: The Rediffmail (aka com.rediff.mail.and) application 2.2.6 for Android has cleartext mail content in file stor

Routine

MEDIUM 4.6DOWNGRADE

CVE-2019-11836 is a medium-severity flaw (CVSS 4.6) affecting rediffmail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Rediffmail (aka com.rediff.mail.and) application 2.2.6 for Android has cleartext mail content in file storage, persisting after a logout.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-311
Published	2019-05-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rediff

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

Am I affected?

Timeline

2019-05-09 13:29 UTCPublished CVE record published
2026-06-17 02:13 UTCUpdated Record last modified

rediff rediffmail DOWNGRADE

Affected: 2.2.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.6 (Debian / Ubuntu)

apt-cache madison rediffmail sudo apt install rediffmail=<VERSION_BEFORE_2.2.6> sudo apt-mark hold rediffmail

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

dnf --showduplicates list rediffmail sudo dnf downgrade rediffmail-<VERSION_BEFORE_2.2.6> sudo dnf versionlock add rediffmail

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-2019-11836?

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

Is CVE-2019-11836 being exploited?

CVE-2019-11836 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-2019-11836 affect?

CVE-2019-11836 affects rediffmail. Severity is medium (CVSS 4.6). The Rediffmail (aka com.rediff.mail.and) application 2.2.6 for Android has cleartext mail content in file storage, persisting after a logout.

How urgent is CVE-2019-11836?

Priority 27/100. Public exploit reference

Software pages

Android vulnerabilities

References

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