Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2016-2812

25
FAUCET Score

CVE-2016-2812 describes a race condition vulnerability in the ServiceWorkerManager class within Mozilla Firefox versions prior to 46.0. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service through a buffer overflow and application crash by enticing a user to visit a specially crafted website. Rated with a CVSS score of 7.5 (HIGH), the vulnerability has a network attack vector and high impact on confidentiality, integrity, and availability, but requires high attack complexity and user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has received limited community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 45.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.40%
Probability of exploitation in next 30 days
EPSS Percentile
82.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0240 is in the 54th percentile among its peer group of 1,570 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-2812Important

Mozilla: Use-after-free and buffer overflow in Service Workers (MFSA 2016-42)

Apr 26, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-05/msg00005.html
lists.opensuse.org / opensuse-updates/2016-05/msg00038.html
bugzilla.mozilla.org / show_bug.cgi
security.gentoo.org / glsa/201701-15
mozilla.org / security/announce/2016/mfsa2016-42.html
Vendor Advisory
securitytracker.com / id/1035692
ubuntu.com / usn/USN-2936-1
ubuntu.com / usn/USN-2936-2
ubuntu.com / usn/USN-2936-3