CVE-2013-1054Public exploitNetwork attack vector

Browser crash via reentrant initialization callback

Published Apr 7, 2021 · Updated Sep 16, 2024

Denial of service in Unity Integration for Firefox before 3.0.0+14.04.20140416-0ubuntu1.14.04.1 allows remote attackers to crash Firefox. During webapps initialization, a crafted website spins the event loop inside the callback, destroying the Unity webapps context. Exploitation requires a Firefox user to open attacker-controlled content and interrupts only that browser process.

CVSS severity6.5
Medium
EPSS probability1.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in Unity Integration for Firefox before 3.0.0+14.04.20140416-0ubuntu1.14.04.1 allows remote attackers to crash Firefox. During webapps initialization, a crafted website spins the event loop inside the callback, destroying the Unity webapps context. Exploitation requires a Firefox user to open attacker-controlled content and interrupts only that browser process.

The record

CVE
CVE-2013-1054
Published
Apr 7, 2021
Updated
Sep 16, 2024
Vendor
Canonical
Product
Unity Integration for Firefox
Classifications
CWE-404, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.0.0 <3.0.0+14.04.20140416-0ubuntu1.14.04.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Canonical · Unity Integration for Firefoxversion=3.0.0 <3.0.0+14.04.20140416-0ubuntu1.14.04.1

Published CVSS scores

4.3Canonical Ltd.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo