Memory Corruption Issue in Firefox by Mozilla
CVE-2025-10530

6.5MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox
Thunderbird
Vendor
CVE Published:
16 September 2025

What is CVE-2025-10530?

A memory corruption vulnerability in Mozilla Firefox can allow an attacker to exploit affected versions, leading to potential execution of arbitrary code. Users are advised to upgrade to the latest version to mitigate risks. Further information can be found in Mozilla’s security advisories.

Affected Version(s)

Firefox < 143

Thunderbird < 143

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1974025
https://www.mozilla.org/security/advisories/mfsa2025-73/
https://www.mozilla.org/security/advisories/mfsa2025-77/

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hafiizh & Kang Ali
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