CVE-2015-8651: Adobe Flash Player Integer Overflow Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 25 May 2022, 2,340 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 67.7%
EPSS score, percentile 99.3 of all scored records
- How severe?
- 8.8 High
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline 15 Jun 2022. The impacted product is end-of-life and should be disconnected if still in use.
- Which versions are affected?
Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
The impacted product is end-of-life and should be disconnected if still in use.
CISA due date for this action: 15 June 2022.
Advisories and patches
- openSUSE-SU-2015:2403
- RHSA-2015:2697
- SUSE-SU-2015:2401
- SUSE-SU-2015:2402
- openSUSE-SU-2015:2400
- GLSA-201601-03
Linked from CISA's catalog entry
Affected products and versions
The CVE record does not name affected products or versions: vendor and product are “n/a” and the version is “unspecified”.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Integer overflow in Adobe Flash Player allows attackers to execute code.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2015-8651 to its Known Exploited Vulnerabilities (KEV) catalog on 25 May 2022.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 15 Jun 2022.
- The CVE record was published on 28 Dec 2015, 2,340 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 8.8 (High), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 67.7% (percentile 99.3), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
Integer overflow in Adobe Flash Player before 18.0.0.324 and 19.x and 20.x before 20.0.0.267 on Windows and OS X and before 11.2.202.559 on Linux, Adobe AIR before 20.0.0.233, Adobe AIR SDK before 20.0.0.233, and Adobe AIR SDK & Compiler before 20.0.0.233 allows attackers to execute arbitrary code via unspecified vectors.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 28 Dec 2015 | CVE record published |
| 25 May 2022 | Added to CISA KEV |
| 15 Jun 2022 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited Adobe vulnerabilities
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- CVE-2026-75650: Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability
- CVE-2026-48282: Adobe ColdFusion Path Traversal Vulnerability
- CVE-2009-3459: Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability
- CVE-2020-9715: Adobe Acrobat Use-After-Free Vulnerability