Adobe

CVE-2011-0559: Adobe Flash Player before 10.2.152.26 allows attackers to execute arbitrary code or cause a denial of service (memory…

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 16 Nov 2012. It cites 1 public report, the first from 16 Nov 2012.

archive.f-secure.com

How likely is exploitation in the next 30 days?

5.2%

EPSS score, percentile 92.5 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

Not scored

The CVE record carries no CVSS score.

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (4)

Which versions are affected?

Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Adobe Flash Player before 10.2.152.26 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted parameters to an unspecified ActionScript method that cause a parameter to be used as an object pointer, a different vulnerability than CVE-2011-0560, CVE-2011-0561, CVE-2011-0571, CVE-2011-0572, CVE-2011-0573, CVE-2011-0574, CVE-2011-0578, CVE-2011-0607, and CVE-2011-0608.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

RHSA-2011:0259 (Vendor advisory)
RHSA-2011:0206 (Vendor advisory)
SUSE-SA:2011:009 (Vendor advisory)
RHSA-2011:0368 (Vendor advisory)

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

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, as of 30 Oct 2026. About the data.

Timeline

Date	Event
10 Feb 2011	CVE record published
6 Aug 2024	CVE record last updated

References

20110208 Adobe Flash Player ActionScript Memory Corruption Vulnerability (Third-party advisory)
43267 (Third-party advisory)
43292 (Third-party advisory)
43351 (Third-party advisory)
43340 (Third-party advisory)
43747 (Third-party advisory)
ADV-2011-0348 (Vulnerability database)
1025055 (Vulnerability database)

8 more in the CVE record.

Known exploited Adobe vulnerabilities

CVE-2026-48356: Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability (added 27 Oct 2026)
CVE-2026-71362: Adobe Commerce and Magento Incorrect Authorization Vulnerability (added 24 Sep 2026)
CVE-2026-75650: Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability (added 8 Sep 2026)
CVE-2026-48282: Adobe ColdFusion Path Traversal Vulnerability (added 7 Jul 2026)
CVE-2009-3459: Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability (added 20 May 2026)