CVE-2019-11708

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-05-23. Federal remediation due 2022-06-13.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

55.87% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.9% of scored records. A rank, not a probability.

NVD base score

10.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-07-23 13:20Z7 YR AGO

Last updated

2025-10-21 23:45Z1 YR AGO

Reserved

2019-05-03

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Critical (CVSS 10.0)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

• CWE-20Improper Input ValidationClass
• CWE-270Privilege Context Switching ErrorBase

Data version

5.1

Document digest

4748e84becc048dbb4c7953a85cdf7702330091070d1c640fc4dff3c2a44d4c1

• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-19/x_refsource_MISC
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-20/x_refsource_MISC
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1559858x_refsource_MISC
• security.gentoo.orgGLSA-201908-12https://security.gentoo.org/glsa/201908-12vendor-advisoryx_refsource_GENTOO
• packetstormsecurity.comhttp://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.htmlx_refsource_MISC
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11708government-resource