Back
CVE-2018-5099
A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously…
Critical9.8EPSS 3.0%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in a potentially exploitable crash when these references are used. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.0% · top 13% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Use-after-free with widget listener
- CWE-416 (opens in a new tab)All about CWE-416 and its CVEs
Affected products
- affected unspecified – < 52.6
- affected unspecified – < 52.6
- affected unspecified – < 58
References (13)
- https://www.mozilla.org/security/advisories/mfsa2018-03/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1040270 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- [debian-lts-announce] 20180129 [SECURITY] [DLA 1262-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 102783 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-4096 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2018:0262 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3544-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-04/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:0122 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-02/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20180124 [SECURITY] [DLA 1256-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1416878 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4102 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-5099)Record last updated .