Vulnerabilities / CVE-2025-1017

critical

CVE-2025-1017

firefox: thunderbird: Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7

Published Modified CWE 787
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by AlmaLinux (high), Amazon (high), Oracle (high), Rocky Linux (high), Red Hat (medium), Ubuntu (medium).

Description

Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. 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 was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

Affected packages and fixed versions

SourcePackageFixed in
alma 8firefox, thunderbird128.7.0-1.el8_10 and 1 more
alma 9firefox, firefox-x11, thunderbird128.7.0-1.el9_5 and 1 more
amazon linux 2thunderbird, thunderbird-debuginfo128.7.0-1.amzn2.0.2
chainguardfirefox, firefox-esr135.0-r0 and 1 more
debian 11firefox-esr, thunderbird128.7.0esr-1~deb11u1 and 1 more
debian 12firefox-esr, thunderbird128.7.0esr-1~deb12u1 and 1 more
debian 13firefox-esr, thunderbird128.7.0esr-1 and 1 more
debian 14firefox-esr, thunderbird128.7.0esr-1 and 1 more
echofirefox-esr, thunderbird128.7.0esr-1~deb12u1 and 1 more
Oracle Linux 7firefox128.7.0-1.0.1.el7_9
Oracle Linux 8firefox, thunderbird128.7.0-1.0.1.el8_10
Oracle Linux 9firefox, firefox-x11, thunderbird128.7.0-1.0.1.el9_5
Show all 52 entries from 29 sources
SourcePackageFixed in
alma 8firefox128.7.0-1.el8_10
alma 8thunderbird128.7.0-1.el8_10.alma.1
alma 9firefox128.7.0-1.el9_5
alma 9firefox-x11128.7.0-1.el9_5
alma 9thunderbird128.7.0-1.el9_5.alma.1
amazon linux 2thunderbird128.7.0-1.amzn2.0.2
amazon linux 2thunderbird-debuginfo128.7.0-1.amzn2.0.2
chainguardfirefox135.0-r0
chainguardfirefox-esr128.7.0-r0
debian 11firefox-esr128.7.0esr-1~deb11u1
debian 11thunderbird1:128.7.0esr-1~deb11u1
debian 12firefox-esr128.7.0esr-1~deb12u1
debian 12thunderbird1:128.7.0esr-1~deb12u1
debian 13firefox-esr128.7.0esr-1
debian 13thunderbird1:128.7.0esr-1
debian 14firefox-esr128.7.0esr-1
debian 14thunderbird1:128.7.0esr-1
echofirefox-esr128.7.0esr-1~deb12u1
echothunderbird1:128.7.0esr-1~deb12u1
Oracle Linux 7firefox128.7.0-1.0.1.el7_9
Oracle Linux 8firefox128.7.0-1.0.1.el8_10
Oracle Linux 8thunderbird128.7.0-1.0.1.el8_10
Oracle Linux 9firefox128.7.0-1.0.1.el9_5
Oracle Linux 9firefox-x11128.7.0-1.0.1.el9_5
Oracle Linux 9thunderbird128.7.0-1.0.1.el9_5
rapidfort alma 10firefoxno fix listed
rapidfort alma 10thunderbirdno fix listed
rapidfort alpine 3.20thunderbird128.7.0-r0
rapidfort alpine 3.21thunderbird128.7.0-r0
rapidfort alpine 3.23thunderbird128.7.0-r0
rapidfort alpine 3.24thunderbird128.7.0-r0
rapidfort debian 12firefox-esr0:128.7.0esr-1, 0:128.7.0esr-1~deb11u1, 0:128.7.0esr-1~deb12u1
rapidfort debian 12thunderbird0:128.7.0esr-1~deb11u1, 0:128.7.0esr-1~deb12u1, 1:128.7.0esr-1
rapidfort debian 13firefox-esr0:128.7.0esr-1, 0:128.7.0esr-1~deb11u1, 0:128.7.0esr-1~deb12u1
rapidfort debian 13thunderbird0:128.7.0esr-1~deb11u1, 0:128.7.0esr-1~deb12u1, 1:128.7.0esr-1
rapidfort Oracle Linux 10firefoxno fix listed
rapidfort Oracle Linux 10thunderbirdno fix listed
rapidfort Oracle Linux 9firefox0:128.7.0-1.0.1.el9_5
rapidfort Oracle Linux 9firefox-x110:128.7.0-1.0.1.el9_5
rapidfort Oracle Linux 9thunderbird0:128.7.0-1.0.1.el9_5
rapidfort ubuntu 20.04thunderbird1:140.7.1+build1-0ubuntu0.22.04.1
rapidfort ubuntu 22.04thunderbird1:140.7.1+build1-0ubuntu0.22.04.1
rapidfort ubuntu 24.04thunderbird1:140.7.1+build1-0ubuntu0.22.04.1
Red Hatfirefoxno fix listed
Red Hatfirefox-flatpak-containerno fix listed
Red Hatthunderbirdno fix listed
Red Hatthunderbird-flatpak-containerno fix listed
rocky 8firefox128.7.0-1.el8_10
rocky 8thunderbird128.7.0-1.el8_10
ubuntu 20.04firefox135.0+build2-0ubuntu0.20.04.1
ubuntu 22.04thunderbird1:128.12.0+build1-0ubuntu0.22.04.1
wolfifirefox135.0-r0

References

All 51 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.