CVE-2016-10894: xtrlock through 2.10 does not block multitouch events

Q: How do I fix CVE-2016-10894?

xtrlock: upgrade to newer than 2.10; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2016-10894 being exploited?

CVE-2016-10894 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-2016-10894 affect?

CVE-2016-10894 affects xtrlock, debian linux. Severity is medium (CVSS 4.6). xtrlock through 2.10 does not block multitouch events. Consequently, an attacker at a locked screen can send input to (and thus control) various programs such as Chromium via events such as pan scrolling, "pinch and zoom" gestures, or even

Q: How urgent is CVE-2016-10894?

Priority 29/100. On your watchlist

Routine

MEDIUM 4.6WATCHLISTUPGRADEMITIGATE

CVE-2016-10894 is a medium-severity flaw (CVSS 4.6) affecting xtrlock, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

xtrlock through 2.10 does not block multitouch events. Consequently, an attacker at a locked screen can send input to (and thus control) various programs such as Chromium via events such as pan scrolling, "pinch and zoom" gestures, or even regular mouse clicks (by depressing the touchpad once and then clicking with a different finger).

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-254
Published	2019-08-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · xtrlock project

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

Am I affected?

Timeline

2019-08-16 03:15 UTCPublished CVE record published
2026-06-17 00:40 UTCUpdated Record last modified

xtrlock project xtrlock UPGRADE

Affected: <= 2.10

Fixed in: newer than 2.10

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.10 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xtrlock

Note

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

debian debian linux MITIGATE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2016-10894?

xtrlock: upgrade to newer than 2.10; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-10894 being exploited?

CVE-2016-10894 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-2016-10894 affect?

CVE-2016-10894 affects xtrlock, debian linux. Severity is medium (CVSS 4.6). xtrlock through 2.10 does not block multitouch events. Consequently, an attacker at a locked screen can send input to (and thus control) various programs such as Chromium via events such as pan scrolling, "pinch and zoom" gestures, or even

How urgent is CVE-2016-10894?

Priority 29/100. On your watchlist

Software pages

Debian vulnerabilities · Chromium vulnerabilities · Zoom vulnerabilities

References

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