CVE-2018-5165
CVE-2018-5165 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (74th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Mozilla Firefox
- Published:
- Last modified:
Description
In 32-bit versions of Firefox, the Adobe Flash plugin setting for "Enable Adobe Flash protected mode" is unchecked by default even though the Adobe Flash sandbox is actually enabled. The displayed state is the reverse of the true setting, resulting in user confusion. This could cause users to select this setting intending to activate it and inadvertently turn protections off. This vulnerability affects Firefox < 60.
Frequently asked questions
- What is CVE-2018-5165?
- In 32-bit versions of Firefox, the Adobe Flash plugin setting for "Enable Adobe Flash protected mode" is unchecked by default even though the Adobe Flash sandbox is actually enabled. The displayed state is the reverse of the true setting, resulting in user confusion. This could cause users to select this setting intending to activate it and inadvertently turn protections off. This vulnerability affects Firefox < 60.
- How severe is CVE-2018-5165?
- CVE-2018-5165 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2018-5165 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-5165?
- CVE-2018-5165 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-5165?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-5165 published?
- CVE-2018-5165 was published on 2018-06-11 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/104139
- http://www.securitytracker.com/id/1040896
- https://bugzilla.mozilla.org/show_bug.cgi?id=1451452
- https://www.mozilla.org/security/advisories/mfsa2018-11/
Affected products (1)
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:x86:*
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