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CVE-2018-5125

27
FAUCET Score

CVE-2018-5125 describes memory safety bugs in Firefox 58, Firefox ESR 52.6, and Thunderbird, potentially leading to memory corruption and arbitrary code execution. With a CVSS score of 8.8 (High), it can be exploited remotely with low attack complexity, requiring user interaction, and could result in high impact to confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
17.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.48%
Probability of exploitation in next 30 days
EPSS Percentile
82.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0248 is in the 82nd percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:52.7.0-1.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:52.7.0-1.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:52.7.0-1.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:52.7.0-1.el7_4
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-5125Critical

Mozilla: Memory safety bugs fixed in Firefox 59 and Firefox ESR 52.7 (MFSA 2018-07)

Mar 14, 2018

References

access.redhat.com / errata/RHSA-2018:0526
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0527
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0647
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0648
Third Party Advisory
bugzilla.mozilla.org / buglist.cgi
Issue Tracking
lists.debian.org / debian-lts-announce/2018/03/msg00010.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/03/msg00029.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201810-01
Third Party Advisory
security.gentoo.org / glsa/201811-13
Third Party Advisory
usn.ubuntu.com / 3545-1
Third Party Advisory
usn.ubuntu.com / 3596-1
Third Party Advisory
usn.ubuntu.com / 3688-1
Third Party Advisory
debian.org / security/2018/dsa-4139
Third Party Advisory
debian.org / security/2018/dsa-4155
Third Party Advisory
mozilla.org / security/advisories/mfsa2018-06
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-07
Vendor Advisory
mozilla.org / security/advisories/mfsa2018-09
Vendor Advisory
securityfocus.com / bid/103388
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040514
Third Party AdvisoryVDB Entry