CVE-2018-18505
An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC…
- 10.0CriticalCVSS base score
- 4.4%Exploitation in 30 daysEPSS · top 8.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC process creation. This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
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 | Critical10.0 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.4% · top 8.5% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Affected products
- affected unspecified – < 60.5
- affected unspecified – < 60.5
- affected unspecified – < 65
References
References18
- RHSA-2019:0219 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2019-01/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3897-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1087565 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 106781 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201903-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- USN-3874-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:0269 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0218 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2019-02/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4376 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [debian-lts-announce] 20190216 [SECURITY] [DLA 1678-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20190130 [SECURITY] [DLA 1648-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.mozilla.org/security/advisories/mfsa2019-03/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4392 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2019:0270 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201904-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- openSUSE-SU-2019:1758 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_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-2018-10230 (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-2018-18505)Record last updated .