LiveActive security incident?Get immediate response
CVE Record

CVE-2016-5290: Memory safety bugs were reported in Firefox 49 and Firefox ESR 45.4.

Memory safety bugs were reported in Firefox 49 and Firefox ESR 45.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2016-5290 covers Mozilla memory safety defects in older Firefox, Firefox ESR, and Thunderbird releases. Mozilla reported memory corruption and presumed some bugs could be exploited to run arbitrary code. Business risk is mainly legacy endpoint exposure: current, supported installations should not be affected by the versions listed. Exposure is likely limited to obsolete Mozilla clients on unmanaged endpoints, old Linux images, kiosks, VDI templates, or archived server desktops. Organizations without legacy Firefox ESR, Firefox, or Thunderbird versions have low practical exposure. Prioritize as high only if legacy Mozilla clients remain in the environment. For modern fleets, this is mainly a hygiene and asset-discovery issue, but any confirmed affected version should be remediated quickly. Mitigation focus: Upgrade Firefox to version 50 or later where still present.; Upgrade Firefox ESR to version 45.5 or later where still present.; Upgrade Thunderbird to version 45.5 or later where still present..

Prepared

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

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2016-5290 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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
7Source links

CVSS and timeline data

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MozillaThunderbirdunspecifiedListed
MozillaFirefox ESRunspecifiedListed
MozillaFirefoxunspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.