Vulnerability Details : CVE-2020-26978
Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Products affected by CVE-2020-26978
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26978
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26978
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
References for CVE-2020-26978
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1677047
Access DeniedPermissions Required
-
https://www.mozilla.org/security/advisories/mfsa2020-56/
Security Vulnerabilities fixed in Thunderbird 78.6 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2020-55/
Security Vulnerabilities fixed in Firefox ESR 78.6 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2020-54/
Security Vulnerabilities fixed in Firefox 84 — MozillaVendor Advisory
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