SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-0757

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 does not prevent modifications to the prototype of an…

HIGH 9.3EPSS 60.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 60.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 does not prevent modifications to the prototype of an object, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges by referencing Object.prototype.__proto__ in a crafted HTML document.

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
60.86% probability · 99th percentile
CISA KEV
Not listed
Weakness
CWE-20
Affected
mozilla/firefox · mozilla/seamonkey · mozilla/thunderbird · mozilla/thunderbird esr · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server · suse/linux enterprise software development kit · canonical/ubuntu linux
Source
security@mozilla.org

References

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