Is CVE-2017-5426 in the CISA KEV catalog?

No. CVE-2017-5426 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-5426?

CVE-2017-5426 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2017-5426?

CVE-2017-5426 has an EPSS score of 1.44% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-5426?

Upgrade firefox on debian unstable to 52.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-5426

MEDIUM

5.3

CVSS v3

NVD

Description

On Linux, if the secure computing mode BPF (seccomp-bpf) filter is running when the Gecko Media Plugin sandbox is started, the sandbox fails to be applied and items that would run within the sandbox are run protected only by the running filter which is typically weak compared to the sandbox. Note: this issue only affects Linux. Other operating systems are not affected. This vulnerability affects Firefox < 52 and Thunderbird < 52.

CWE-732Incorrect Permission Assignment for Critical Resource

How to fix

Remediation Available

firefoxDebian

Fixed in:52.0-1CVE-2017-5426

firefoxUbuntu

Fixed in:52.0+build2-0ubuntu0.14.04.1USN-3216-1

Fixed in:52.0+build2-0ubuntu0.16.04.1USN-3216-1

DeveloperEditionWindows application

Affected:52.0Fixed in:52.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:52.0Fixed in:52.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:52.0Fixed in:52.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.44%probability of exploitation in 30 days

70thpercentile

Moderate risk: more likely to be exploited than 70% of all known CVEs.

References

Patch1

bugzilla.mozilla.org

Vendor Advisory2

Third-Party Advisory2

Related Vulnerabilities

Other CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-3923	Critical	9.8	89%	-	Fix
CVE-2018-15379	Critical	9.8	86%	-	-
CVE-2018-1000207	High	7.2	64%	-	-
CVE-2023-32986	High	8.8	63%	-	-
CVE-2021-44521	Critical	9.1	55%	-	Fix
CVE-2018-13374	Medium	4.3	38%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.