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CVE-2025-8033 (GCVE-0-2025-8033)

Vulnerability from cvelistv5 – Published: 2025-07-22 20:49 – Updated: 2026-07-29 14:59
VLAI
Title
Incorrect JavaScript state machine for generators
Summary
The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-23 13:36 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox Unaffected: 115.26 , ≤ 115.* (rpm)
Unaffected: 128.13 , ≤ 128.* (rpm)
Unaffected: 140.1 , ≤ 140.* (rpm)
Unaffected: 141 , ≤ * (rpm)
guessed Create a notification for this product.
Mozilla Thunderbird Unaffected: 128.13 , ≤ 128.* (rpm)
Unaffected: 140.1 , ≤ 140.* (rpm)
Unaffected: 141 , ≤ * (rpm)
guessed Create a notification for this product.
Credits
Shaheen Fazim
Show details on NVD website
To clipboard 

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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.

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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.