CVE-2021-29988
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.4%
exploitation probability
1.4%top 29% of all CVEs
observed exploitation
nono source reports it
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1717922https://security.gentoo.org/glsa/202202-03https://security.gentoo.org/glsa/202208-14https://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-34/https://www.mozilla.org/security/advisories/mfsa2021-35/https://www.mozilla.org/security/advisories/mfsa2021-36/