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CVE-2013-1347

Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly allocated or (2) is deleted, as exploited in the wild in May 2013.

CVSS 8.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.7/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 8.8: +1.32
  • Fresh EPSS: 77.74%: +0.39

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

Sources: 7 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

Recorded Future
Press · 16 Nov 2017, 08:00 · China’s Ministry of State Security Likely Influences National Network Vulnerability Publications - Recorded Future
Morphisec
Press · 17 Dec 2015, 08:00 · ASLR – What It Is, and What It Isn’t - Morphisec
Recorded Future
Press · 10 Dec 2014, 08:00 · Tracking Moving Targets: Exploit Kits and CVEs - Recorded Future
Cisco Talos Blog
Press · 02 May 2014, 07:00 · Continued analysis of the LightsOut Exploit Kit - Cisco Talos Blog
The Hacker News
Press · 16 Oct 2013, 07:00 · ASLR bypass techniques are popular with APT attacks - The Hacker News
See all 7 source documents
Bitdefender
Press · 09 May 2013, 07:00 · Microsoft Releases Temporary Fix for Internet Explorer Bug - Bitdefender
Cisco Blogs
Press · 06 May 2013, 07:00 · Watering Hole Attacks an Attractive Alternative to Spear Phishing - Cisco Blogs

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 8.7 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

Source entries and unverified repository candidates are counted separately.

Public exploit evidence
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 8.8; EPSS 77.7%
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 13:57:31.572064+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
05 May 2013, 10:00
First press mention
06 May 2013, 07:00
Latest press mention
16 Nov 2017, 08:00
Added to the CISA KEV catalog
03 Mar 2022, 00:00
Score calculated
05 Nov 2026, 13:57
PoCs on GitHub
1 repositories