How severe is CVE-2016-7877?

CVE-2016-7877 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-7877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-7877?

CVE-2016-7877 primarily affects Adobe Flash Player Desktop Runtime. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-7877?

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-2016-7877 published?

CVE-2016-7877 was published on 2016-12-15 and last updated on 2026-06-17.

CVE-2016-7877

CVE-2016-7877 is a high-severity vulnerability in Adobe Flash Player Desktop Runtime with a CVSS 3.x base score of 8.8. 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-416.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Adobe Flash Player Desktop Runtime
Published: 2016-12-15
Last modified: 2026-06-17

Description

Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable use after free vulnerability in the Action Message Format serialization (AFM0). Successful exploitation could lead to arbitrary code execution.

Frequently asked questions

What is CVE-2016-7877?: Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable use after free vulnerability in the Action Message Format serialization (AFM0). Successful exploitation could lead to arbitrary code execution.
How severe is CVE-2016-7877?: CVE-2016-7877 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-7877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-7877?: CVE-2016-7877 primarily affects Adobe Flash Player Desktop Runtime. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-7877?: 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-2016-7877 published?: CVE-2016-7877 was published on 2016-12-15 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*

More vulnerabilities in Adobe Flash Player Desktop Runtime

CVE-2014-0564 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.250 and 14.x and 15.x before 15.0.0.189 on Windows and OS X and before 11.2.202.411 on…
CVE-2020-9633 — Critical (CVSS 9.8): Adobe Flash Player Desktop Runtime 32.0.0.371 and earlier, Adobe Flash Player for Google Chrome 32.0.0.371 and earlier,…
CVE-2019-8070 — Critical (CVSS 9.8): Adobe Flash Player 32.0.0.238 and earlier versions, 32.0.0.207 and earlier versions have a Use after free…
CVE-2019-8069 — Critical (CVSS 9.8): Adobe Flash Player 32.0.0.238 and earlier versions, 32.0.0.207 and earlier versions have a Same Origin Method Execution…
CVE-2019-7096 — Critical (CVSS 9.8): Adobe Flash Player versions 32.0.0.156 and earlier, 32.0.0.156 and earlier, and 32.0.0.156 and earlier have an use…
CVE-2018-15981 — Critical (CVSS 9.8): Flash Player versions 31.0.0.148 and earlier have a type confusion vulnerability. Successful exploitation could lead to…

All CVEs affecting Adobe Flash Player Desktop Runtime →

Other CWE-416 (Use After Free) vulnerabilities

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →