CVE-2019-9599: The AirDroid application through 4.2.1.6 for Android allows remote attackers to cause a denial of service (ser

Q: How do I fix CVE-2019-9599?

airdroid: upgrade to newer than 4.2.1.6. Exact commands for each OS are on this page.

Q: Is CVE-2019-9599 being exploited?

CVE-2019-9599 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-9599 affect?

CVE-2019-9599 affects airdroid. Severity is high (CVSS 7.5). The AirDroid application through 4.2.1.6 for Android allows remote attackers to cause a denial of service (service crash) via many simultaneous sdctl/comm/lite_auth/ requests.

Q: How urgent is CVE-2019-9599?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2019-9599 is a high-severity flaw (CVSS 7.5) affecting airdroid. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The AirDroid application through 4.2.1.6 for Android allows remote attackers to cause a denial of service (service crash) via many simultaneous sdctl/comm/lite_auth/ requests.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	13.3% (top 4%)
CISA exploited list	No
Published	2019-03-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: airdroid

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

Am I affected?

Timeline

2019-03-06 18:29 UTCPublished CVE record published
2026-06-17 02:44 UTCUpdated Record last modified

airdroid airdroid UPGRADE

Affected: <= 4.2.1.6

Fixed in: newer than 4.2.1.6

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.2.1.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade airdroid

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade airdroid

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: AirDroid 4.2.1.6 - Denial of Service

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-2019-9599?

airdroid: upgrade to newer than 4.2.1.6. Exact commands for each OS are on this page.

Is CVE-2019-9599 being exploited?

CVE-2019-9599 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-2019-9599 affect?

CVE-2019-9599 affects airdroid. Severity is high (CVSS 7.5). The AirDroid application through 4.2.1.6 for Android allows remote attackers to cause a denial of service (service crash) via many simultaneous sdctl/comm/lite_auth/ requests.

How urgent is CVE-2019-9599?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities

References

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