ExploitedIn CISA KEVFix available

CVE-2011-0611

Q: Is CVE-2011-0611 actively exploited?

Yes. CVE-2011-0611 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-03-24.

Q: What is the CVSS score for CVE-2011-0611?

CVE-2011-0611 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Exploitation confirmed. First attested on 2022-03-03 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2011-04-13
Fixed in10.0.3 · 9.4.4 · 9.4
WeaknessCWE-843

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Adobe Flash Player before 10.2.154.27 on Windows, Mac OS X, Linux, and Solaris and 10.2.156.12 and earlier on Android; Adobe AIR before 2.6.19140; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader 9.x before 9.4.4 and 10.x through 10.0.1 on Windows, Adobe Reader 9.x before 9.4.4 and 10.x before 10.0.3 on Mac OS X, and Adobe Acrobat 9.x before 9.4.4 and 10.x before 10.0.3 on Windows and Mac OS X allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Flash content; as demonstrated by a Microsoft Office document with an embedded .swf file that has a size inconsistency in a "group of included constants," object type confusion, ActionScript that adds custom functions to prototypes, and Date objects; and as exploited in the wild in April 2011.

Timeline

dates in UTC

2011-04-1314:55CVE publishedNVD
2022-03-03Added to the CISA KEV catalogCISA KEV
2022-03-03Listed as exploited by GCVEGCVE
2022-03-03Exploitation first reportedCISA KEV
2024-02-0214:05SSVC exploitation set to activeCISA-ADP
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2011-0611?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2011-0611?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Adobe acrobatversion to verify

Branch	Affected	Fixed in	Source
10.0	≥ 10.0, < 10.0.3	10.0.3	NVD · CISA-ADP
9.x	≥ 9.0, < 9.4.4	9.4.4	CISA-ADP
9.x	≥ 9.0, < 9.4	9.4	NVD

Adobe acrobat readerversion to verify

Branch	Affected	Fixed in	Source
10.0	≥ 10.0, < 10.0.3	10.0.3	NVD
9.x	≥ 9.0, < 9.4.4	9.4.4	NVD
10.0	≥ 10.0, ≤ 10.0.1	no fix published	NVD

Opensuse

Branch	Affected	Fixed in	Source
11.2	= 11.2	no fix published	NVD
11.3	= 11.3	no fix published	NVD
11.4	= 11.4	no fix published	NVD

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Adobe acrobat to 10.0.3 · 9.4.4 · 9.4
CISA’s required action: The impacted product is end-of-life and should be disconnected if still in use.due 2022-03-24

Advisories and patches

googlechromereleases.blogspot.comRelease Notes
lists.opensuse.orgPatch
secunia.comVendor Advisory
secunia.comVendor Advisory
secunia.comVendor Advisory
secunia.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

CISA Known Exploited Vulnerability

Date Added: 2022-03-03
Patch Due Date: 2022-03-24
Ransomware Use: Unknown
Required Action: The impacted product is end-of-life and should be disconnected if still in use.

Sources

CISA KEVKEV entry2022-03-03
GCVEexploitation2022-03-03
CISA-ADPSSVC decisionactive2024-02-02
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.18.82024-06-19
NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
CISA-ADPweakness (CWE)CWE-8432024-06-19
NVDweakness (CWE)CWE-843read 2026-10-23
FIRST EPSSEPSS score99.4 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2011-04-13
Last Modified: 2026-06-16
NVD status: Analyzed

Frequently asked questions

What is CVE-2011-0611?

Is CVE-2011-0611 actively exploited?

Yes. CVE-2011-0611 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-03-24.

What is the CVSS score for CVE-2011-0611?

CVE-2011-0611 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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