BSD Ports

Mozilla -- Memory safety bugs

· CVE-2026-5731 · VuXML entry

Mozilla reports: Memory safety bugs present in Firefox ESR, Firefox ESR , Thunderbird ESR, and Thunderbird. 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.

Affected versions

By system

3 still vulnerable, 4 fixed. Where VuXML applies (FreeBSD, DragonFly, FreeBSD's derivatives) a port is vulnerable while its version is in a range; pkgsrc says itself whether it lists a CVE of this advisory; OpenBSD and MidnightBSD keep no list this site reads, so their row is only an estimate: FreeBSD's ranges applied to upstream's version.

SystemPortVersionStateFixed
DragonFlywww/firefox131.0_1,2 vulnerable since 2026-04-17
OpenBSDwww/mozilla-firefox158.0.1 out of range, by version
NetBSDwww/firefox154.0.1nb1 not listed
MidnightBSDwww/firefox158.0.1,2 out of range, by version
FreeBSDwww/firefox158.0.1,2 fixed (117 days after)
DragonFlywww/firefox-esr128.12.0,1 vulnerable since 2026-04-17
OpenBSDwww/firefox-esr153.5.1 out of range, by version
NetBSDwww/firefox-esr140 not listed
MidnightBSDwww/firefox-esr153.5.1,1 out of range, by version
FreeBSDwww/firefox-esr153.5.1,2 fixed (89 days after)
DragonFlymail/thunderbird128.3.0_2 vulnerable since 2026-04-17
OpenBSDmail/mozilla-thunderbird153.5.1 out of range, by version
NetBSDmail/thunderbird154.0nb1 not listed
MidnightBSDmail/thunderbird158.0.1 out of range, by version
FreeBSDmail/thunderbird158.0.1 fixed (116 days after)
FreeBSDmail/thunderbird-esr153.5.1 fixed (109 days after)