How severe is CVE-2015-6691?

CVE-2015-6691 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2015-6691 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6691?

CVE-2015-6691 primarily affects Adobe Acrobat. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6691?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-6691 published?

CVE-2015-6691 was published on 2015-10-14 and last updated on 2026-06-17.

CVE-2015-6691

CVE-2015-6691 is a critical-severity vulnerability in Adobe Acrobat with a CVSS 2.0 base score of 10.0. 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-416.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Adobe Acrobat
Published: 2015-10-14
Last modified: 2026-06-17

Description

Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.16 and 11.x before 11.0.13, Acrobat and Acrobat Reader DC Classic before 2015.006.30094, and Acrobat and Acrobat Reader DC Continuous before 2015.009.20069 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2015-5586, CVE-2015-6683, CVE-2015-6684, CVE-2015-6687, CVE-2015-6688, CVE-2015-6689, CVE-2015-6690, CVE-2015-7615, CVE-2015-7617, and CVE-2015-7621.

Frequently asked questions

What is CVE-2015-6691?: Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.16 and 11.x before 11.0.13, Acrobat and Acrobat Reader DC Classic before 2015.006.30094, and Acrobat and Acrobat Reader DC Continuous before 2015.009.20069 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2015-5586, CVE-2015-6683, CVE-2015-6684, CVE-2015-6687, CVE-2015-6688, CVE-2015-6689, CVE-2015-6690, CVE-2015-7615, CVE-2015-7617, and CVE-2015-7621.
How severe is CVE-2015-6691?: CVE-2015-6691 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2015-6691 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6691?: CVE-2015-6691 primarily affects Adobe Acrobat. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6691?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-6691 published?: CVE-2015-6691 was published on 2015-10-14 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*

More vulnerabilities in Adobe Acrobat

CVE-2018-4872 — Critical (CVSS 10.0): An issue was discovered in Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier…
CVE-2016-1044 — Critical (CVSS 10.0): Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and…
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CVE-2015-6687 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.16 and 11.x before 11.0.13, Acrobat and…

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