How severe is CVE-2016-3278?

CVE-2016-3278 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-3278 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3278?

CVE-2016-3278 primarily affects Microsoft Outlook. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-3278?

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

When was CVE-2016-3278 published?

CVE-2016-3278 was published on 2016-07-13 and last updated on 2026-06-17.

CVE-2016-3278

CVE-2016-3278 is a high-severity vulnerability in Microsoft Outlook with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Outlook
Published: 2016-07-13
Last modified: 2026-06-17

Description

Microsoft Outlook 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016 allows remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Frequently asked questions

What is CVE-2016-3278?: Microsoft Outlook 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016 allows remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."
How severe is CVE-2016-3278?: CVE-2016-3278 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-3278 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3278?: CVE-2016-3278 primarily affects Microsoft Outlook. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-3278?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-3278 published?: CVE-2016-3278 was published on 2016-07-13 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:x64:*
cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:outlook_rt:2013:sp1:*:*:*:*:*:*

More vulnerabilities in Microsoft Outlook

CVE-2001-0538 — Critical (CVSS 10.0): Microsoft Outlook View ActiveX Control in Microsoft Outlook 2002 and earlier allows remote attackers to execute…
CVE-2023-23397 — Critical (CVSS 9.8): Microsoft Outlook Elevation of Privilege Vulnerability
CVE-2013-3870 — Critical (CVSS 9.3): Double free vulnerability in Microsoft Outlook 2007 SP3 and 2010 SP1 and SP2 allows remote attackers to execute…
CVE-2010-2728 — Critical (CVSS 9.3): Heap-based buffer overflow in Microsoft Outlook 2002 SP3, 2003 SP3, and 2007 SP2, when Online Mode for an Exchange…
CVE-2010-0266 — Critical (CVSS 9.3): Microsoft Office Outlook 2002 SP3, 2003 SP3, and 2007 SP1 and SP2 does not properly verify e-mail attachments with a…
CVE-2007-0033 — Critical (CVSS 9.3): Microsoft Outlook 2002 and 2003 allows user-assisted remote attackers to execute arbitrary code via a malformed VEVENT…

All CVEs affecting Microsoft Outlook →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-77946 — Critical (CVSS 10.0): A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function…
CVE-2026-76008 — Critical (CVSS 10.0): A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file…
CVE-2026-75784 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of…
CVE-2026-74843 — Critical (CVSS 10.0): A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function…
CVE-2026-16367 — Critical (CVSS 10.0): Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →