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CVE-2016-0034

HIGH
8.8
CVSS Score
Published: January 13, 2016 at 02:00 AM UTC
Updated: August 14, 2026 at 05:36 AM UTC
1 product affected across 1 vendorSilverlight

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Severity
HIGH8.8
Exploitation
CISA KEV
Exploit prediction
EPSS 69%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score69.4%

EPSS (Exploit Prediction Scoring System) estimates a 69.4% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Microsoft Silverlight mishandles negative offsets during decoding, which allows attackers to execute remote code or cause a denial-of-service (DoS).

Required Action
The impacted products are end-of-life and should be disconnected if still in use.
Ransomware Use
Known
Added to KEV
May 25, 2022
Remediation Due
Jun 15, 2022
1594 days overdue
Notes
https://nvd.nist.gov/vuln/detail/CVE-2016-0034

Description

Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerability."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Silverlight· Microsoft
95%
5.0 ≤ v < 5.1.41212.0
Affected range stops below 5.1.41212.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

VDB Entryx_refsource_SECTRACKBroken LinkThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1034655
Vendor Advisoryx_refsource_MSPatch
Source: [email protected]
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-006
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-0034

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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