CVE-2017-7806: Mozilla Firefox vulnerability

CVE-2017-7806: A use-after-free vulnerability can occur when the layer manager is freed too early when rendering specific...

A use-after-free vulnerability can occur when the layer manager is freed too early when rendering specific SVG content, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 55.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 16:12 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2017-7806 is a Firefox browser flaw where crafted SVG content could trigger a memory error and crash. Mozilla described the crash as potentially exploitable. The evidence only identifies Firefox versions before 55 as affected. Exposure is mainly legacy Firefox installations older than version 55. Modern, maintained Firefox deployments should be outside the stated affected range, but inventories should verify actual browser versions. Treat this as a legacy-browser exposure issue. If Firefox before 55 exists in the environment, remediate promptly because the browser content attack surface is broad. If none exists, business urgency is low. Mitigation focus: Upgrade Firefox installations to version 55 or later.; Check Mozilla advisory MFSA2017-18 for vendor guidance.; Remove or isolate unsupported legacy Firefox versions..

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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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/mfsa2017-18/CVE reference · x_refsource_CONFIRM
https://bugzilla.mozilla.org/show_bug.cgi?id=1378113CVE 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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