How severe is CVE-2015-7189?

CVE-2015-7189 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-7189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7189?

CVE-2015-7189 primarily affects Mozilla Firefox. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-7189?

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

When was CVE-2015-7189 published?

CVE-2015-7189 was published on 2015-11-05 and last updated on 2026-06-17.

CVE-2015-7189

CVE-2015-7189 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 6.8. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Mozilla Firefox
Published: 2015-11-05
Last modified: 2026-06-17

Description

Race condition in the JPEGEncoder function in Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via vectors involving a CANVAS element and crafted JavaScript code.

Frequently asked questions

What is CVE-2015-7189?: Race condition in the JPEGEncoder function in Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via vectors involving a CANVAS element and crafted JavaScript code.
How severe is CVE-2015-7189?: CVE-2015-7189 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-7189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7189?: CVE-2015-7189 primarily affects Mozilla Firefox. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-7189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-7189 published?: CVE-2015-7189 was published on 2015-11-05 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.2.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:38.3.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

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