CVE-2016-1974 - CVE House
Back to Database
Status published High CVE-2016-1974

The nsScannerString::AppendUnicodeTo function in Mozilla Firefox before 45.0 and Firefox...

Vulnerability Description

The nsScannerString::AppendUnicodeTo function in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 does not verify that memory allocation succeeds, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via crafted Unicode data in an HTML, XML, or SVG document.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2016-1974

Credits & Attribution

No credits recorded in the NVD database.

References

More from mozilla

View All →
CVE-2025-66453
Rhino vulnerable high CPU usage and potential DoS when passing specific numbers to toFixed() function
Medium 5.5
CVE-2022-29167
ReDoS vulnerability in header parsing in hawk
High 7.4
CVE-2021-21354
Open redirect in pollbot
High 7.4
CVE-2020-15660
Missing checks on Content-Type headers in geckodriver before 0.27.0 could...
High 8.8
CVE-2018-7753
An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes...
Critical 9.8

Affected Vendor

Affected Software

firefox, thunderbird, linux, leap, opensuse, linux enterprise
Vulnerable Versions:
0, 38.0, 38.0.1, 38.0.5, 38.1.0, 38.1.1, 38.2.0, 38.2.1, 38.3.0, 38.4.0, 38.5.0, 38.5.1, 38.6.0, 38.6.1, 5.0, 6, 7, 42.1, 13.1, 13.2, 12.0

Timeline

Official Publish: March 13th, 2016
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.