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CVE-2019-9812· NVD / CVE Program· CNA mozilla

Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.fir

Noroxi assessment

Priority: Monitor (action score 37/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.5% (FIRST EPSS); higher than 73.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: firefox-esr (Debian:10) 60.9.0esr-1~deb10u1; firefox-esr (Debian:12) 68.1.0esr-1; firefox-esr (Debian:8) 60.9.0esr-1~deb8u1.

Low priority for now. Upgrade to firefox-esr (Debian:10) 60.9.0esr-1~deb10u1; firefox-esr (Debian:12) 68.1.0esr-1; firefox-esr (Debian:8) 60.9.0esr-1~deb8u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.firefox.com in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart without the sandbox if a crash is triggered. This vulnerability affects Firefox ESR < 60.9, Firefox ESR < 68.1, and Firefox < 69.

CriticalCVSS 9.3 · v3.1—No exploit Fix available
Published
Jan 8, 2020
Updated
Jun 16, 2026
EPSS
1.5% · 74th percentile
CWE
—

Report tools

JSON

Action score

37

Monitor

Low priority for now.

CVSS
37 / 40 · 9.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2019-9812

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
mozillafirefox

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mozilla firefoxbefore 60.9
  • mozilla firefoxbefore 69.0
  • mozilla firefox61.0 and later · before 68.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (mozilla). Independent of NVD's CPE analysis and usually ahead of it.

  • Mozilla Firefox

    • before 69affected

  • Mozilla Firefox ESR

    • before 60.9, before 68.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10firefox-esrbefore 60.9.0esr-1~deb10u160.9.0esr-1~deb10u1
Debian:12firefox-esrbefore 68.1.0esr-168.1.0esr-1
Debian:8firefox-esrbefore 60.9.0esr-1~deb8u160.9.0esr-1~deb8u1
Debian:9firefox-esrbefore 60.9.0esr-1~deb9u160.9.0esr-1~deb9u1
Red Hat:enterprise_linux:6::clientfirefoxbefore 0:60.9.0-1.el6_100:60.9.0-1.el6_10
Red Hat:enterprise_linux:6::clientfirefox-debuginfobefore 0:60.9.0-1.el6_100:60.9.0-1.el6_10
Red Hat:enterprise_linux:7::clientfirefoxbefore 0:60.9.0-1.el7_70:60.9.0-1.el7_7
Red Hat:enterprise_linux:7::clientfirefox-debuginfobefore 0:60.9.0-1.el7_70:60.9.0-1.el7_7
Red Hat:enterprise_linux:8::appstreamfirefoxbefore 0:68.1.0-1.el8_00:68.1.0-1.el8_0
Red Hat:enterprise_linux:8::appstreamfirefox-debuginfobefore 0:68.1.0-1.el8_00:68.1.0-1.el8_0
Red Hat:enterprise_linux:8::appstreamfirefox-debugsourcebefore 0:68.1.0-1.el8_00:68.1.0-1.el8_0
SUSE:HPE Helion OpenStack 8MozillaFirefoxbefore 60.9.0-109.86.160.9.0-109.86.1
SUSE:Linux Enterprise Server 11 SP4-LTSSfirefox-glib2before 2.54.3-2.11.12.54.3-2.11.1
SUSE:Linux Enterprise Server 11 SP4-LTSSfirefox-gtk3before 3.10.9-2.12.23.10.9-2.12.2
SUSE:Linux Enterprise Server 11 SP4-LTSSMozillaFirefoxbefore 60.9.0esr-78.46.260.9.0esr-78.46.2

Same product

mozilla: all records

Other highest-scoring records for the same primary product.

  • CVE-2010-3765Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x befKEV
    94Now
  • CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxeKEV
    87Now
  • CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypassKEV
    86Now
  • CVE-2013-1690Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properKEV
    86Now
  • CVE-2019-17026Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion.KEV
    79This week
  • CVE-2024-9680An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines.KEV
    76This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:firefox-esr68.1.0esr-1 · Debian:12Package registry (OSV)
red hat:firefox0:68.1.0-1.el8_0 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:firefox-debuginfo0:68.1.0-1.el8_0 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:firefox-debugsource0:68.1.0-1.el8_0 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
suse:firefox-glib22.54.3-2.11.1 · SUSE:Linux Enterprise Server 11 SP4-LTSSPackage registry (OSV)
suse:firefox-gtk33.10.9-2.12.2 · SUSE:Linux Enterprise Server 11 SP4-LTSSPackage registry (OSV)
suse:MozillaFirefox60.9.0esr-78.46.2 · SUSE:Linux Enterprise Server 11 SP4-LTSSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
None
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records