CVE-2026-2780 (GCVE-0-2026-2780)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-02-25 17:19
VLAI?
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 148 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 140.8 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 148 (custom)
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    Mozilla Thunderbird Affected: unspecified , < 140.8 (custom)
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Credits
RyotaK
Show details on NVD website
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.