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CriticalCISA KEVExploited in the wildPublic exploit

Adobe Reader and Acrobat Memory Corruption RCE/DoS

IdentifiersCVE-2013-3346CWE-119

CVE-2013-3346 is a memory corruption vulnerability in Adobe Reader and Acrobat affecting 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.3. The issue can be triggered via unspecified vectors and may allow an attacker to execute arbitrary code or cause a denial of service. Supporting reporting indicates the flaw was used in the wild by the Epic Turla campaign as an Adobe Reader code-execution vector, including delivery through spearphishing PDF attachments. The specific vulnerable function or parser component is not identified in the provided content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can result in arbitrary code execution in the security context of the user opening the malicious content. Where code execution is not achieved, the vulnerability can still cause application instability or a crash, resulting in denial of service due to memory corruption. In observed threat activity, the vulnerability was used for initial compromise to deploy malware.

Mitigation

If you can’t patch tonight, do this now.

Until patching is completed, reduce exposure by blocking or sandboxing untrusted PDF attachments, especially from spearphishing sources; restricting execution of Adobe Reader/Acrobat in high-risk workflows; using email and web-content filtering to detect malicious PDFs; and applying least-privilege controls so successful exploitation does not yield elevated rights. Additional hardening such as protected viewing/sandbox features, if available in the deployment, may reduce exploit reliability.

Remediation

Patch, then assume compromise.

Upgrade Adobe Reader and Acrobat to a fixed version: 9.5.5 or later on the 9.x branch, 10.1.7 or later on the 10.x branch, or 11.0.3 or later on the 11.x branch. Remove or retire unsupported versions where possible and ensure enterprise patch management covers all Reader/Acrobat installations.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AdobeAcrobatapplication
AdobeAcrobat Readerapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence4

Every observed campaign linking this CVE to a named adversary.

Associated malware3

Malware families riding this exploit, with evidence and IOCs.

Detection signatures1

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2013-3346
NVD
nvd.nist.gov/vuln/detail/CVE-2013-3346
MITRE CWE · CWE-119
cwe.mitre.org
Issue Tracking
github.com/cisagov/vulnrichment/issues/199
US Government Resource
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3346