Vulnerability Details : CVE-2021-23973
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Products affected by CVE-2021-23973
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- 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-2021-23973
0.51%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23973
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-23973
-
The product generates an error message that includes sensitive information about its environment, users, or associated data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-23973
-
https://www.mozilla.org/security/advisories/mfsa2021-08/
Security Vulnerabilities fixed in Firefox ESR 78.8 — MozillaRelease Notes;Vendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1690976
Access DeniedIssue Tracking;Permissions Required;Vendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2021-09/
Security Vulnerabilities fixed in Thunderbird 78.8 — MozillaRelease Notes;Vendor Advisory
-
https://security.gentoo.org/glsa/202104-10
Mozilla Firefox: Multiple vulnerabilities (GLSA 202104-10) — Gentoo securityThird Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2021-07/
Security Vulnerabilities fixed in Firefox 86 — MozillaRelease Notes;Vendor Advisory
-
https://security.gentoo.org/glsa/202104-09
Mozilla Thunderbird: Multiple vulnerabilities (GLSA 202104-09) — Gentoo securityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html
[SECURITY] [DLA 2578-1] thunderbird security updateMailing List;Third Party Advisory
-
https://www.debian.org/security/2021/dsa-4866
Debian -- Security Information -- DSA-4866-1 thunderbirdThird Party Advisory
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