High severity · published Sep 3, 2021
CVE-2021-30608
Chromium: CVE-2021-30608 Use after free in Web Share
8.8
CVSS
4.1%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.1% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
Edge · Microsoft
through 93.0.961.38 · source: NVD
EC
Edge Chromium · Microsoft
through 93.0.4577.63 · source: NVD
FE
Fedora · Fedoraproject
35 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30608
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30608
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30608
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