Vulnerability in Mozilla Firefox

CVE-2016-1968

Integer underflow in Brotli, as used in Mozilla Firefox before 45.0, allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via crafted data with brotli compression.

EPSS: 0.041 (89.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-1968?
CVE-2016-1968 is a high-severity vulnerability in Mozilla Firefox, classified under CWE-189. CVSS score: 8.8/10. Published 2016-03-13.
How severe is CVE-2016-1968?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2016-1968 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.