How severe is CVE-2025-13015?

CVE-2025-13015 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-13015 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-13015?

CVE-2025-13015 primarily affects Mozilla Firefox. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-13015?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-13015 have an EU (EUVD) identifier?

Yes. CVE-2025-13015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-84334.

When was CVE-2025-13015 published?

CVE-2025-13015 was published on 2025-11-11 and last updated on 2026-06-17.

CVE-2025-13015

CVE-2025-13015 is a low-severity vulnerability in Mozilla Firefox with a CVSS 3.x base score of 3.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-290.

Key facts

Severity: Low (CVSS 3.x base score 3.4)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-84334
Weakness: CWE-290
Affected product: Mozilla Firefox
Published: 2025-11-11
Last modified: 2026-06-17

Description

Spoofing issue in Firefox. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30.

Frequently asked questions

What is CVE-2025-13015?: Spoofing issue in Firefox. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30.
How severe is CVE-2025-13015?: CVE-2025-13015 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-13015 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-13015?: CVE-2025-13015 primarily affects Mozilla Firefox. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-13015?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-13015 have an EU (EUVD) identifier?: Yes. CVE-2025-13015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-84334.
When was CVE-2025-13015 published?: CVE-2025-13015 was published on 2025-11-11 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

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