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CVE-2018-12376
Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of memory corruption and we presume that…
- 9.8CriticalCVSS base score
- 3.1%Exploitation in 30 daysEPSS · top 12% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Timeline
ID reserved
By mozilla
- 4 months later
· 4 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 | 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)
- 3.1% · top 12% of all CVEs (11 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.
Affected products
- affected unspecified – < 62
- affected unspecified – < 60.2
- affected unspecified – < 60.2.1
References
References17
- 105280 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201810-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2018:2693 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [debian-lts-announce] 20181112 [SECURITY] [DLA 1575-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201811-13 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-4327 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2018:3403 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-20/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1041610 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2018:2692 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3458 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3793-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-21/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1469309%2C1469914%2C1450989%2C1480092%2C1480517%2C1481093%2C1478575%2C1471953%2C1473161%2C1466991%2C1468738%2C1483120%2C1467363%2C1472925%2C1466577%2C1467889%2C1480521%2C1478849 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-25/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3761-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- DSA-4287 (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)
- EUVD EUVD-2018-4350 (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-2018-12376)Record last updated .