SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-1960

Integer underflow in the nsHtml5TreeBuilder class in the HTML5 string parser in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) by leveraging…

HIGH 8.8EPSS 30.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 30.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Integer underflow in the nsHtml5TreeBuilder class in the HTML5 string parser in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) by leveraging mishandling of end tags, as demonstrated by incorrect SVG processing, aka ZDI-CAN-3545.

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
30.95% probability · 98th percentile
CISA KEV
Not listed
Affected
oracle/linux · mozilla/firefox · mozilla/thunderbird · opensuse/leap · opensuse/opensuse · suse/linux enterprise
Source
security@mozilla.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.