CVE-2017-7752
A use-after-free vulnerability during specific user interactions with the input method editor (IME) in some languages due to how events…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A use-after-free vulnerability during specific user interactions with the input method editor (IME) in some languages due to how events are handled. This results in a potentially exploitable crash but would require specific user interaction to trigger. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
Timeline
ID reserved
By mozilla
- 14 months later
· 14 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.0% · top 20% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- Use-after-free with IME input
- CWE-416 (opens in a new tab)All about CWE-416 and its CVEs
Affected products
- affected unspecified – < 54
- affected unspecified – < 52.2
- affected unspecified – < 52.2
References (10)
- 99057 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1359547 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-15/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3918 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 1038689 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-3881 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2017:1440 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:1561 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-17/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-16/ (opens in a new tab)x_refsource_CONFIRMx_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://cveledger.app/cve/CVE-2017-7752)Record last updated .