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CVE Record

CVE-2017-7792: A buffer overflow will occur when viewing a certificate in the certificate manager if the certificate has a...

A buffer overflow will occur when viewing a certificate in the certificate manager if the certificate has an extremely long object identifier (OID). This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Older Mozilla Firefox and Thunderbird versions could crash, and possibly be exploited, when a user views a certificate containing an extremely long object identifier in the certificate manager. The main business risk is legacy desktop software that has not received 2017 Mozilla or distribution security updates.

Executive priority

Prioritize remediation if legacy Mozilla clients remain in production or on sensitive administrator workstations. For current managed endpoints, this is mainly a hygiene and legacy-risk issue rather than an emergency based on the provided evidence.

Technical view

CVE-2017-7792 is a buffer overflow in Mozilla certificate manager handling of certificates with extremely long OIDs. The source bundle lists Thunderbird before 52.3, Firefox ESR before 52.3, and Firefox before 55 as affected. The described impact is a potentially exploitable crash.

Likely exposure

Exposure is most likely on unmanaged endpoints, old Linux distributions, frozen application stacks, or appliances still running affected Firefox, Firefox ESR, or Thunderbird builds. Modern patched installations are not indicated as exposed by the supplied sources.

Exploitation context

The bundle does not show CISA KEV listing or confirmed active exploitation. It describes a crash that may be exploitable when viewing a crafted certificate in the certificate manager. Treat exploitability as plausible but unconfirmed from the supplied evidence.

Researcher notes

The sources provide affected version thresholds and the trigger condition, but no CVSS, CWE, exploit proof, or detailed patch analysis. Avoid assuming remote exploitation or active attacks without additional evidence.

Mitigation direction

  • Upgrade Firefox to version 55 or later where applicable.
  • Upgrade Firefox ESR to version 52.3 or later.
  • Upgrade Thunderbird to version 52.3 or later.
  • Apply relevant Debian, Red Hat, or Gentoo security updates.
  • Avoid viewing untrusted certificates in affected clients until patched.

Validation and detection

  • Inventory Firefox, Firefox ESR, and Thunderbird versions across endpoints.
  • Check Linux package versions against Debian, Red Hat, and Gentoo advisories.
  • Confirm no Firefox versions below 55 remain in use.
  • Confirm no Firefox ESR or Thunderbird versions below 52.3 remain.
  • Review vulnerability scan results for CVE-2017-7792 findings.
Prepared
Confidence
high
Sources
11

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

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CVE-2017-7792 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
10Source 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.