CVE-2021-29977

EPSS 1.0%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

05 Aug 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Mozilla developers reported memory safety bugs present in Firefox 89. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 90.

Affected products

Mozilla · Firefox

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References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1665836%2C1686138%2C1704316%2C1706314%2C1709931%2C1712084%2C1712357%2C1714066 https://security.gentoo.org/glsa/202202-03 https://www.mozilla.org/security/advisories/mfsa2021-28/