CVE-2022-45406
If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
Timeline
ID reserved
By mozilla
- 38 days later
· 38 days later
Published
- 2 years later
· 2 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Use-after-free of a JavaScript Realm
- CWE-416 Use After Free (opens in a new tab)All about CWE-416 and its CVEs
Affected products
- affected unspecified – < 102.5
- affected unspecified – < 102.5
- affected unspecified – < 107
References (4)
- https://www.mozilla.org/security/advisories/mfsa2022-47/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2022-49/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2022-48/ (opens in a new tab)x_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1791975 (opens in a new tab)x_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-2022-45406)Record last updated .