A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write.
A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
- Published
- Oct 18, 2018
- Updated
- Jun 16, 2026
- EPSS
- 13.4% · 96th percentile
- CWE
- CWE-704
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Report tools
Action score
36
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 4 / 30 · 13.4%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server eus | cpe:2.3:o:redhat:enterprise_linux_server_eus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux14.04
- canonical ubuntu linux16.04
- canonical ubuntu linux18.04
- debian debian linux9.0
- mozilla firefoxbefore 62.0.3
- mozilla firefoxbefore 60.2.2
- redhat enterprise linux desktop6.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux server6.0
- redhat enterprise linux server7.0
- redhat enterprise linux server aus7.6
- redhat enterprise linux server eus7.5
- redhat enterprise linux server eus7.6
- redhat enterprise linux server tus7.6
- redhat enterprise linux workstation6.0
- redhat enterprise linux workstation7.0
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
- unspecified and later · before 62.0.3affected
Mozilla Firefox ESR
- unspecified and later · before 60.2.2affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | firefox-esr | before 60.2.2esr-1 | 60.2.2esr-1 |
| Debian:9 | firefox-esr | before 60.2.2esr-1~deb9u1 | 60.2.2esr-1~deb9u1 |
| Red Hat:enterprise_linux:6::client | firefox | before 0:60.2.2-1.el6 | 0:60.2.2-1.el6 |
| Red Hat:enterprise_linux:6::client | firefox-debuginfo | before 0:60.2.2-1.el6 | 0:60.2.2-1.el6 |
| Red Hat:enterprise_linux:7::client | firefox | before 0:60.2.2-1.el7_5 | 0:60.2.2-1.el7_5 |
| Red Hat:enterprise_linux:7::client | firefox-debuginfo | before 0:60.2.2-1.el7_5 | 0:60.2.2-1.el7_5 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 | MozillaFirefox | before 60.2.2-3.13.3 | 60.2.2-3.13.3 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 | MozillaFirefox-branding-SLE | before 60-4.5.3 | 60-4.5.3 |
| SUSE:OpenStack Cloud 7 | apache2-mod_nss | before 1.0.14-19.6.3 | 1.0.14-19.6.3 |
| SUSE:OpenStack Cloud 7 | mozilla-nspr | before 4.19-19.3.1 | 4.19-19.3.1 |
| SUSE:OpenStack Cloud 7 | mozilla-nss | before 3.36.4-58.15.3 | 3.36.4-58.15.3 |
| SUSE:OpenStack Cloud 7 | MozillaFirefox | before 60.2.2esr-109.46.1 | 60.2.2esr-109.46.1 |
| SUSE:OpenStack Cloud 7 | MozillaFirefox-branding-SLE | before 60-32.3.1 | 60-32.3.1 |
Same product
redhat: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-5375JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks.49Plan
- CVE-2018-14649It was found that ceph-isci-cli package as shipped by Red Hat Ceph Storage 2 and 3 is using python-werkzeug in debug shell mode.43Plan
- CVE-2016-7050SerializableProvider in RESTEasy in Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux HPC Node 7, Red Hat Enterprise Linux Server41Plan
- CVE-2010-5325Heap-based buffer overflow in the unhtmlify function in foomatic-rip in foomatic-filters before 4.0.6 allows remote attackers to cause a den41Plan
- CVE-2018-5156A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring.40Plan
- CVE-2018-12378A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload 40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:firefox-esr | 60.2.2esr-1 · Debian:12 | Package registry (OSV) |
| red hat:firefox | 0:60.2.2-1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:60.2.2-1.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| suse:apache2-mod_nss | 1.0.14-19.6.3 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:mozilla-nspr | 4.19-19.3.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:mozilla-nss | 3.36.4-58.15.3 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:MozillaFirefox | 60.2.2-3.13.3 · SUSE:Linux Enterprise Module for Desktop Applications 15 | Package registry (OSV) |
| suse:MozillaFirefox-branding-SLE | 60-4.5.3 · SUSE:Linux Enterprise Module for Desktop Applications 15 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:2 | 2019-08-09 |
| Proof-of-concept repository on GitHub | stars:2 | 2020-04-10 |
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.
- Published
- First PoC+295 d
- TodaySep 30, 2026+2905 d
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 researchersFinders, 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
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-704 · Incorrect Type Conversion or CastCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
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
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.securityfocus.com/bid/105460
- www.securitytracker.com/id/1041770
- access.redhat.com/errata/RHSA-2018:2881
- access.redhat.com/errata/RHSA-2018:2884
- security.gentoo.org/glsa/201810-01
- usn.ubuntu.com/3778-1/
- www.debian.org/security/2018/dsa-4310
- www.mozilla.org/security/advisories/mfsa2018-24/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.