CVE-2018-12292
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before...
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.
- Record
CVE-2018-12292- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-416
- Updated
- 2026-11-02
CVE List No score
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.
- Record
CVE-2018-12292- Updated
- 2026-11-02
EUVDEUVD-2018-4266 No score
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.
- Record
EUVD-2018-4266- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r5hq-fqrw-h33h
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before...
A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.
- Record
GHSA-r5hq-fqrw-h33h- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Pale Moon Browser < 27.9.3 - Use After Free (PoC) | 2018-06-18 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-12292 is a critical vulnerability (CVSS 9.8) in Palemoon Pale Moon, published June 13, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.75%, the 95th percentile. No source names a fixed version.