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CVE-2017-5455
The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox escape and escalation of privilege if combined with…
High7.5EPSS 3.4%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
The internal feed reader APIs that crossed the sandbox barrier allowed for a sandbox escape and escalation of privilege if combined with another vulnerability that resulted in remote code execution inside the sandboxed process. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 3.4% · top 11% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Sandbox escape through internal feed reader APIs
Affected products
Mozilla · Firefox ESR
- affected unspecified – < 52.1
Mozilla · Firefox
- affected unspecified – < 53
References (6)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1341191 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:1106 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-12/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2017-10/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 97940 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1038320 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_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)
Record last updated .