CVE-2017-7761

The Mozilla Maintenance Service "helper.exe" application creates a temporary directory writable by non-privileged users. When this is combined with creation of a junction (a form of symbolic link), protected files in the target directory of the junction can be deleted by the Mozilla Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mozillaCNA
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.43%
Affected Products (NVD)
VendorProductVersion
mozillafirefox
𝑥
< 52.2.0
mozillafirefox
𝑥
< 54.0
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
mozillafirefox_esr
𝑥
< 52.2
CNA
mozillafirefox_esr
𝑥
< 54
CNA
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
firefox-esr
bookworm
115.14.0esr-1~deb12u1
fixed
bookworm (security)
128.4.0esr-1~deb12u1
fixed
bullseye
115.14.0esr-1~deb11u1
fixed
bullseye (security)
128.4.0esr-1~deb11u1
fixed
sid
128.4.0esr-1
fixed
trixie
128.3.1esr-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
trusty
dne
xenial
not-affected
yakkety
not-affected
zesty
not-affected
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
MozillaFirefox
suse enterprise desktop 15
52.7.3-1.35
fixed
suse enterprise desktop 15 SP1
60.6.2-3.32.1
fixed
suse enterprise desktop 15 SP2
68.8.0-3.87.1
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise desktop 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise sap 12 SP5
68.1.0-109.92.1
fixed
suse enterprise sap 15
52.7.3-1.35
fixed
suse enterprise sap 15 SP1
60.6.2-3.32.1
fixed
suse enterprise sap 15 SP2
68.8.0-3.87.1
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise sap 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise server 12 SP5
68.1.0-109.92.1
fixed
suse enterprise server 15
52.7.3-1.35
fixed
suse enterprise server 15 SP1
60.6.2-3.32.1
fixed
suse enterprise server 15 SP2
68.8.0-3.87.1
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise server 15 SP7
128.9.0-150200.152.176.1
fixed
MozillaFirefox-branding-SLE-52
suse enterprise sap 12
31.1
fixed
suse enterprise sap 12 SP1
31.1
fixed
suse enterprise sap 12 SP2
31.1
fixed
suse enterprise server 12
31.1
fixed
suse enterprise server 12 SP1
31.1
fixed
suse enterprise server 12 SP2
31.1
fixed
MozillaFirefox-devel
suse enterprise desktop 15
52.7.3-1.35
fixed
suse enterprise desktop 15 SP1
60.6.2-3.32.1
fixed
suse enterprise desktop 15 SP2
68.8.0-3.87.1
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
102.12.0-150200.152.90.1
fixed
suse enterprise desktop 15 SP7
102.12.0-150200.152.90.1
fixed
suse enterprise sap 15
52.7.3-1.35
fixed
suse enterprise sap 15 SP1
60.6.2-3.32.1
fixed
suse enterprise sap 15 SP2
68.8.0-3.87.1
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
102.12.0-150200.152.90.1
fixed
suse enterprise sap 15 SP7
102.12.0-150200.152.90.1
fixed
suse enterprise server 15
52.7.3-1.35
fixed
suse enterprise server 15 SP1
60.6.2-3.32.1
fixed
suse enterprise server 15 SP2
68.8.0-3.87.1
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
102.12.0-150200.152.90.1
fixed
suse enterprise server 15 SP7
102.12.0-150200.152.90.1
fixed
MozillaFirefox-translations-common
suse enterprise desktop 15
52.7.3-1.35
fixed
suse enterprise desktop 15 SP1
60.6.2-3.32.1
fixed
suse enterprise desktop 15 SP2
68.8.0-3.87.1
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise desktop 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise sap 12 SP5
68.1.0-109.92.1
fixed
suse enterprise sap 15
52.7.3-1.35
fixed
suse enterprise sap 15 SP1
60.6.2-3.32.1
fixed
suse enterprise sap 15 SP2
68.8.0-3.87.1
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise sap 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise server 12 SP5
68.1.0-109.92.1
fixed
suse enterprise server 15
52.7.3-1.35
fixed
suse enterprise server 15 SP1
60.6.2-3.32.1
fixed
suse enterprise server 15 SP2
68.8.0-3.87.1
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise server 15 SP7
128.9.0-150200.152.176.1
fixed
MozillaFirefox-translations-other
suse enterprise desktop 15
52.7.3-1.35
fixed
suse enterprise desktop 15 SP1
60.6.2-3.32.1
fixed
suse enterprise desktop 15 SP2
68.8.0-3.87.1
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise desktop 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise sap 15
52.7.3-1.35
fixed
suse enterprise sap 15 SP1
60.6.2-3.32.1
fixed
suse enterprise sap 15 SP2
68.8.0-3.87.1
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise sap 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise server 15
52.7.3-1.35
fixed
suse enterprise server 15 SP1
60.6.2-3.32.1
fixed
suse enterprise server 15 SP2
68.8.0-3.87.1
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise server 15 SP7
128.9.0-150200.152.176.1
fixed