CVE-2026-74947 (GCVE-0-2026-74947)

Vulnerability from cvelistv5 – Published: 2026-08-18 12:23 – Updated: 2026-08-21 03:55
VLAI
Title
Privilege escalation due to invalid pointer in the Graphics component
Summary
Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 00:00 UTC
CWE
  • CWE-763 - Release of Invalid Pointer or Reference
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox Unaffected: 153.1 , ≤ 153.* (rpm)
Unaffected: 154 , ≤ * (rpm)
guessed Create a notification for this product.
Mozilla Thunderbird Unaffected: 153.1 , ≤ 153.* (rpm)
Unaffected: 154 , ≤ * (rpm)
guessed Create a notification for this product.
Credits
navapon
Show details on NVD website
To clipboard 

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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.