CVE-2025-34449: Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulne

Q: How do I fix CVE-2025-34449?

scrcpy: upgrade to 3.3.4. Exact commands for each OS are on this page.

Q: Is CVE-2025-34449 being exploited?

CVE-2025-34449 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-2025-34449 affect?

CVE-2025-34449 affects scrcpy. Severity is critical (CVSS 9.1). Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulnerability in the sc_device_msg_deserialize() function. A compromised device can send crafted messages that cause out-of-bounds read

Q: How urgent is CVE-2025-34449?

Priority 51/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.1REMOTEUPGRADE

CVE-2025-34449 is a critical-severity flaw (CVSS 9.1) affecting scrcpy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulnerability in the sc_device_msg_deserialize() function. A compromised device can send crafted messages that cause out-of-bounds reads, which may result in memory corruption or a denial-of-service condition. This vulnerability may allow further exploitation on the host system.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-502
Published	2025-12-18
Last modified	2026-09-30

Publisher (CNA): VulnCheck · Vendor: genymotion

Last updated 2026-09-30 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-18 22:15 UTCPublished CVE record published
2026-09-30 23:10 UTCUpdated Record last modified

genymotion scrcpy UPGRADE

Affected: < 3.3.4

Fixed in: 3.3.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.3.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade scrcpy

Note

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

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-2025-34449?

scrcpy: upgrade to 3.3.4. Exact commands for each OS are on this page.

Is CVE-2025-34449 being exploited?

CVE-2025-34449 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-2025-34449 affect?

CVE-2025-34449 affects scrcpy. Severity is critical (CVSS 9.1). Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulnerability in the sc_device_msg_deserialize() function. A compromised device can send crafted messages that cause out-of-bounds read

How urgent is CVE-2025-34449?

Priority 51/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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