Microsoft Internet Explorer 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption)…

published 2013-07-10 13y ago modified 2026-06-16 4mo ago also EUVD-2013-3101

cvss: 8.8; version 3.1, CNA
cisa kev: Exploited; added 2023-03-30
epss: 70.7%; EPSS 70.7% chance of exploitation in 30 days, percentile 99.3%
public exploits: 2; Metasploit and Exploit-DB

Microsoft Internet Explorer 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2013-3144 and CVE-2013-3151.

Patch / fix

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

links 1

docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055 advisory

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Timeline

2013-07-09 First public exploit (Metasploit exploit/windows/browser/ms13_055_canchor)
2013-07-10 Published
2023-03-30 Added to CISA KEV
2023-04-20 CISA patch deadline
2025-02-10 CISA SSVC: exploitation active

Known exploited

Added: 3y ago (2023-03-30)
Patch by: 2023-04-20 (3y ago)
Ransomware: Not known
Required action: The impacted product is end-of-life and should be disconnected if still in use.
Vendor, product: Microsoft, Internet Explorer
CISA name: Microsoft Internet Explorer Memory Corruption Vulnerability

CISA SSVC

Exploitation: Active, exploited in the wild
Automatable: no
Technical impact: total
Assessed: last yr. (2025-02-10)

Exploit prediction

70.68% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Metasploit exploit/windows/browser/ms13_055_canchor MS13-055 Microsoft Internet Explorer CAnchorElement Use-After-Free metasploit exploit, normal rank, 2013-07-09
EDB-28187 Microsoft Internet Explorer - CAnchorElement Use-After-Free (MS13-055) (Metasploit) remote, 2013-09-10

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-787 Out-of-bounds Write

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2013/ms13-055
vendor-advisory, patch
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17363
vdb-entry, signature, broken-link
us-cert.gov /ncas/alerts/TA13-190A
third-party-advisory, us-government-resource
cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3163
government-resource, us-government-resource

Sources

CVE List CVE-2013-3163
NVD CVE-2013-3163

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