How severe is CVE-2015-6779?

CVE-2015-6779 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-6779 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6779?

CVE-2015-6779 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6779?

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

When was CVE-2015-6779 published?

CVE-2015-6779 was published on 2015-12-06 and last updated on 2026-06-17.

CVE-2015-6779

CVE-2015-6779 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 4.3. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Google Chrome
Published: 2015-12-06
Last modified: 2026-06-17

Description

PDFium, as used in Google Chrome before 47.0.2526.73, does not properly restrict use of chrome: URLs, which allows remote attackers to bypass intended scheme restrictions via a crafted PDF document, as demonstrated by a document with a link to a chrome://settings URL.

Frequently asked questions

What is CVE-2015-6779?: PDFium, as used in Google Chrome before 47.0.2526.73, does not properly restrict use of chrome: URLs, which allows remote attackers to bypass intended scheme restrictions via a crafted PDF document, as demonstrated by a document with a link to a chrome://settings URL.
How severe is CVE-2015-6779?: CVE-2015-6779 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-6779 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6779?: CVE-2015-6779 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6779?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6779 published?: CVE-2015-6779 was published on 2015-12-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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