CVE-2017-7836: Mozilla Firefox vulnerability

CVE-2017-7836: The "pingsender" executable used by the Firefox Health Report dynamically loads a system copy of libcurl, w...

The "pingsender" executable used by the Firefox Health Report dynamically loads a system copy of libcurl, which an attacker could replace. This allows for privilege escalation as the replaced libcurl code will run with Firefox's privileges. Note: This attack requires an attacker have local system access and only affects OS X and Linux. Windows systems are not affected. This vulnerability affects Firefox < 57.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 16:19 UTC (UTC+00:00)

Security readout for executives and security teams

Firefox versions before 57 on OS X and Linux could let a local attacker run replaced libcurl code with Firefox's privileges through the Health Report pingsender component. This is not a remote browser compromise in the supplied evidence, and Windows is explicitly unaffected. Exposure is likely limited to OS X and Linux endpoints still running Firefox before version 57. Windows systems are out of scope per the CVE description. Modern, supported Firefox installations should not match the affected version condition. Treat this as a legacy endpoint hygiene issue unless older Firefox remains in use on OS X or Linux. Business urgency rises where shared workstations, privileged browser sessions, or unmanaged Linux/macOS endpoints are present. Mitigation focus: Upgrade affected Firefox installations to version 57 or later.; Prioritize OS X and Linux systems; Windows is not affected.; Remove unsupported legacy Firefox builds from managed endpoints..

Prepared: Jun 7, 2026, 06:44 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2017-7836 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 11, 2018, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://www.mozilla.org/security/advisories/mfsa2017-24/CVE reference · x_refsource_CONFIRM
https://bugzilla.mozilla.org/show_bug.cgi?id=1401339CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

MozillaFirefoxunspecifiedListed

Weakness

CWE details

No CWE listed

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