CISA KEV High Memory corruption exploit reference

CVE-2011-0611 — Adobe Flash Player Remote Code Execution Vulnerability

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.

Published Apr 13, 2011 · Updated Oct 13, 2026 · Sources: CISA Known Exploited Vulnerabilities, CVE Program (cve.org) e CISA ADP, NIST National Vulnerability Database, GitHub Security Advisories · CNA: adobe

Urgent

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

CISA KEV · Mar 3, 2022 ☠ APT12 ☠ Dragonfly Metasploit modules · 1 Exploit-DB · 2

How the score was calculated

Confirmed exploitation (CISA KEV)+35
Exploited by 2 threat actor(s) (MITRE ATT&CK)+10
Public exploit/PoC (metasploit, exploitdb)+20
EPSS 99.4% (30-day exploitation probability)+15
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Confirmed

CISA KEV, listed Mar 3, 2022

EPSS FIRST

99.41%

ahead of 100% of scored CVEs · Oct 14, 2026

Affects

Adobe

Acrobat and 6 more

CVSS base

8.8

High · 4 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

Active

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

Documented patch — lists.opensuse.org (NIST National Vulnerability Database)

CISA required action CISA

The impacted product is end-of-life and should be disconnected if still in use.

US federal deadline: Mar 24, 2022 — passed 1666 day(s) ago

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Adobe Acrobat, Adobe Acrobat Reader, Adobe Air…).
Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
Apply the fixed version or the patch documented under Remediation.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
EPSS ahead of 100% of scored CVEs: prioritize it in the patch queue.
Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Adobe	Acrobat	≥ 9.0 and < 9.4≥ 10.0 and < 10.0.3	Vulnerable	NIST National Vulnerability Database
Adobe	Acrobat Reader	≥ 9.0 and < 9.4.4≥ 10.0 and ≤ 10.0.1≥ 10.0 and < 10.0.3	Vulnerable	NIST National Vulnerability Database
Adobe	Air	< 2.6.19140	Vulnerable	NIST National Vulnerability Database
Adobe	Flash Player	< 10.2.154.27≤ 10.2.156.12	Vulnerable	NIST National Vulnerability Database
Google	Chrome	< 10.0.648.205	Vulnerable	NIST National Vulnerability Database
Opensuse	Opensuse	version 11.2version 11.3version 11.4	Vulnerable	NIST National Vulnerability Database
SUSE	Linux Enterprise Desktop	version 10-sp4version 11-sp1	Vulnerable	NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
8.8	CVSS 3.1	High	2.8	5.9	nvd@nist.gov via NIST National Vulnerability Database
8.8	CVSS 3.1	High	2.8	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database
8.8	CVSS 3.1	High	—	—	GitHub, Inc. via GitHub Security Advisories
8.8	CVSS 3.1	High	—	—	CISA-ADP via CVE Program (cve.org) e CISA ADP
9.3	CVSS 2.0	High	8.6	10.0	nvd@nist.gov via NIST National Vulnerability Database

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-843 · Type Confusion

Other CVEs with this weakness →

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

Listed

Mar 3, 2022

Federal deadline

Mar 24, 2022

passed 1666 day(s) ago

Ransomware use

Unknown

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.

Public exploits, PoCs and detection templates

Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.

Metasploit modules

Adobe Flash Player 10.2.153.1 SWF Memory Corruption Vulnerability normal Apr 11, 2011

Exploit-DB

Adobe Flash Player 10.2.153.1 - SWF Memory Corruption (Metasploit) verified Apr 16, 2011
Adobe Reader X 10.0.0 < 10.0.1 - Atom Type Confusion verified Jul 3, 2011

Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.

Threat actors exploiting this CVE MITRE ATT&CK

According to MITRE ATT&CK.

APT12 G0005 Dragonfly G0035

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 99.41%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.
Hunt retroactively in logs from before Mar 3, 2022 (KEV listing): exploitation may have started earlier.

web/proxy/WAF logsnetwork IDS/IPSendpoint telemetry (EDR)crash dumps

Timeline

What happened to this CVE, newest first.

2026
Fix documented
Oct 13, 2026 · NIST National Vulnerability Database
Affected products added · adobe/flash player, adobe/acrobat reader, adobe/adobe air, adobe/acrobat, google/chrome, opensuse/opensuse, suse/linux e
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · Published → Analyzed
Oct 13, 2026 · NIST National Vulnerability Database
Record published
Oct 13, 2026
CVSS changed · 8.8
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Published
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Added to CISA KEV (detected)
Oct 13, 2026 · CISA Known Exploited Vulnerabilities
Record created in this database
Oct 13, 2026 · CISA Known Exploited Vulnerabilities
2022
Added to CISA KEV catalog
Mar 2, 2022 · CISA
2011
CVE published
Apr 13, 2011 · adobe

Source activity

Repeated readings are counted rather than listed.

3× References added · Oct 13, 2026 – Oct 13, 2026
1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

29 on the record

www.adobe.com/support/security/bulletins/apsb11-08.html
x_refsource_CONFIRM, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
secunia.com/advisories/44119
third-party-advisory, x_refsource_SECUNIA, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
www.adobe.com/support/security/advisories/apsa11-02.html
x_refsource_CONFIRM, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
www.adobe.com/support/security/bulletins/apsb11-07.html
x_refsource_CONFIRM, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
www.vupen.com/english/advisories/2011/0922
vdb-entry, x_refsource_VUPEN, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
secunia.com/advisories/44149
third-party-advisory, x_refsource_SECUNIA, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
secunia.com/advisories/44141
third-party-advisory, x_refsource_SECUNIA, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
secunia.com/blog/210/
x_refsource_MISC, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
www.vupen.com/english/advisories/2011/0924
vdb-entry, x_refsource_VUPEN, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
www.vupen.com/english/advisories/2011/0923
vdb-entry, x_refsource_VUPEN, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
www.redhat.com/support/errata/RHSA-2011-0451.html
vendor-advisory, x_refsource_REDHAT, Broken Link, Vendor Advisory, CVE Program (cve.org) e CISA ADP
lists.opensuse.org/opensuse-security-announce/2011-04/msg00004.html
vendor-advisory, x_refsource_SUSE, Mailing List, Patch, CVE Program (cve.org) e CISA ADP
www.cisa.gov/known-exploited-vulnerabilities-catalog
US Government Resource, NIST National Vulnerability Database
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14175
vdb-entry, signature, x_refsource_OVAL, Broken Link, CVE Program (cve.org) e CISA ADP
www.securitytracker.com/id
vdb-entry, x_refsource_SECTRACK, Broken Link, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
exchange.xforce.ibmcloud.com/vulnerabilities/66681
vdb-entry, x_refsource_XF, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
securityreason.com/securityalert/8292
third-party-advisory, x_refsource_SREASON, Third Party Advisory, CVE Program (cve.org) e CISA ADP
www.exploit-db.com/exploits/17175
exploit, x_refsource_EXPLOIT-DB, Exploit, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
securityreason.com/securityalert/8204
third-party-advisory, x_refsource_SREASON, Third Party Advisory, CVE Program (cve.org) e CISA ADP
www.securityfocus.com/bid/47314
vdb-entry, x_refsource_BID, Broken Link, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
secunia.com/blog/210
GitHub Security Advisories
github.com/advisories/GHSA-xhq8-8cqj-q337
GitHub Security Advisories
www.kb.cert.org/vuls/id/230057
third-party-advisory, x_refsource_CERT-VN, Broken Link, Third Party Advisory, US Government Resource, CVE Program (cve.org) e CISA ADP
contagiodump.blogspot.com/2011/04/apr-8-cve-2011-0611-flash-player-zero.html
x_refsource_MISC, Exploit, Issue Tracking, CVE Program (cve.org) e CISA ADP
nvd.nist.gov/vuln/detail/CVE-2011-0611
GitHub Security Advisories
bugix-security.blogspot.com/2011/04/cve-2011-0611-adobe-flash-zero-day.html
x_refsource_MISC, Exploit, CVE Program (cve.org) e CISA ADP
www.securitytracker.com/id
vdb-entry, x_refsource_SECTRACK, Broken Link, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
googlechromereleases.blogspot.com/2011/04/stable-channel-update.html
x_refsource_CONFIRM, Release Notes, CVE Program (cve.org) e CISA ADP
blogs.technet.com/b/mmpc/archive/2011/04/12/analysis-of-the-cve-2011-0611-adobe-flash-p
x_refsource_MISC, Not Applicable, CVE Program (cve.org) e CISA ADP

Elsewhere on this site

Adobe
every CVE for this vendor

2022-03
what else CISA listed that month

Memory corruption
same class

CWE-843
other pages naming this weakness

Related CVEs (same products)

Unknown CVE-2026-110922 Use After Free in Google Chrome 3h
Unknown CVE-2026-110917 Buffer Errors (Improper Restriction of Operations within Memory Bounds) in Google Chrome 3h
Unknown CVE-2026-110918 Buffer Errors (Improper Restriction of Operations within Memory Bounds) in Google Chrome 3h
Unknown CVE-2026-110919 Use After Free in Google Chrome 3h
Unknown CVE-2026-110921 Use After Free in Google Chrome 3h
Unknown CVE-2026-110920 Buffer Errors (Improper Restriction of Operations within Memory Bounds) in Google Chrome 3h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2011-0611 is "Adobe Flash Player Remote Code Execution Vulnerability", rated High. It affects Acrobat (Adobe); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 8.8 describes technical severity. EPSS 99.41% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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