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CVE Record

CVE-2017-7754: An out-of-bounds read in WebGL with a maliciously crafted "ImageInfo" object during WebGL operations.

An out-of-bounds read in WebGL with a maliciously crafted "ImageInfo" object during WebGL operations. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-7754 is a Mozilla WebGL memory-read flaw. A specially crafted ImageInfo object could cause Firefox, Firefox ESR, or Thunderbird to read outside intended memory during WebGL operations. The supplied sources do not show active exploitation, but outdated browser or mail clients should be removed from service or upgraded.

Executive priority

Prioritize this as legacy-client cleanup rather than an emergency response item. The affected versions are old, but browsers and mail clients are high-exposure software. Any remaining instances likely indicate broader endpoint hygiene risk.

Technical view

The issue is an out-of-bounds read in Mozilla WebGL handling involving crafted ImageInfo data. The CVE states Firefox before 54, Firefox ESR before 52.2, and Thunderbird before 52.2 are affected. No CVSS, CWE, exploit detail, or KEV listing is present in the supplied bundle.

Likely exposure

Exposure is mainly legacy desktops, server images, or distribution packages still running Firefox before 54, Firefox ESR before 52.2, or Thunderbird before 52.2. Current supported Mozilla releases should not be assumed affected from these sources alone.

Exploitation context

The bundle does not cite active exploitation, and KEV is false. The described trigger is a maliciously crafted ImageInfo object during WebGL operations. Treat this as browser-adjacent content risk, but do not infer public exploit availability from the provided evidence.

Researcher notes

Evidence is limited to the CVE description and vendor advisory references. There is no supplied CVSS, CWE mapping, crash detail, proof of exploitation, or exploitability assessment. Validation should focus on exact Mozilla product versions and downstream distro package status.

Mitigation direction

  • Upgrade Firefox to version 54 or later.
  • Upgrade Firefox ESR to version 52.2 or later.
  • Upgrade Thunderbird to version 52.2 or later.
  • Apply relevant Debian or Red Hat security advisories where those packages are managed by the OS.
  • Check Mozilla guidance for any environment-specific hardening or follow-up updates.

Validation and detection

  • Inventory installed Firefox, Firefox ESR, and Thunderbird versions across endpoints.
  • Confirm no Firefox versions are below 54.
  • Confirm no Firefox ESR or Thunderbird versions are below 52.2.
  • Check Debian and Red Hat package advisory status on managed Linux systems.
  • Review vulnerability scanner evidence against the exact installed product and version.
Prepared
Confidence
medium
Sources
10

Public sources used

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

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CVE-2017-7754 mapping review

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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
9Source 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
MozillaFirefoxunspecifiedListed
MozillaFirefox ESRunspecifiedListed
MozillaThunderbirdunspecifiedListed
Weakness

CWE details

No CWE listed

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