CVE-2016-3351

Microsoft Internet Explorer 9 through 11 and Microsoft Edge allow remote attackers to obtain sensitive information via a crafted web site, aka "Microsoft Browser Information Disclosure Vulnerability."

CVSS 6.5 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.1/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 6.5: +0.97
Fresh EPSS: 26.48%: +0.13

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 3 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

0/100

Grounded branding (15%)

0/100

HYPE TOTAL0/100

Sources and documents

Wccftech

Press · 12 Oct 2016, 07:00 · Hackers Have Already Exploited Zero-Days in Internet Explorer and Edge – Update Windows 10 Right Away! - Wccftech

Proofpoint

Press · 11 Oct 2016, 07:00 · Peas in a pod: Microsoft patches CVE-2016-3298, a second information disclosure zero-day used in malvertising campaigns and the Neutrino Exploit Kit - Proofpoint

Proofpoint

Press · 13 Sep 2016, 07:00 · Microsoft Patches CVE-2016-3351 Zero-Day, Exploited By AdGholas and GooNky Malvertising Groups - Proofpoint

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.1 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence: Exploitation recorded
Priority basis: Recorded exploitation; CVSS 6.5; EPSS 26.5%
Attention, last 30 days: 0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential: network access, no prior privileges, user interaction.
Observed activity: Exploitation recorded in CISA KEV.
Known scale: Not quantified.
Evidence confidence basis: Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:44.846931+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

First press mention

13 Sep 2016, 07:00

Published

14 Sep 2016, 10:00

Latest press mention

12 Oct 2016, 07:00

Added to the CISA KEV catalog

24 May 2022, 00:00

Score calculated

05 Nov 2026, 13:57