ExploitedIn CISA KEVFix available

CVE-2013-3163

Exploitation confirmed. First attested on 2023-03-30 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2013-07-10
WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2013-07-1003:46CVE publishedNVD
2023-03-30Added to the CISA KEV catalogCISA KEV
2023-03-30Listed as exploited by GCVEGCVE
2023-03-30Exploitation first reportedCISA KEV
2025-02-1018:41SSVC exploitation set to activeCISA-ADP
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2013-3163?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2013-3163?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft internet explorerversion to verify

Branch	Affected	Fixed in	Source
8.x	= 8	no fix published	NVD
9.x	= 9	no fix published	NVD
10.x	= 10	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

CISA’s required action: The impacted product is end-of-life and should be disconnected if still in use.due 2023-04-20

Advisories and patches

docs.microsoft.comPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

CISA Known Exploited Vulnerability

Date Added: 2023-03-30
Patch Due Date: 2023-04-20
Ransomware Use: Unknown
Required Action: The impacted product is end-of-life and should be disconnected if still in use.

Sources

CISA KEVKEV entry2023-03-30
GCVEexploitation2023-03-30
CISA-ADPSSVC decisionactive2025-02-10
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.18.82025-02-10
NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
CISA-ADPweakness (CWE)CWE-7872025-02-10
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score70.7 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2013-07-10
Last Modified: 2026-06-16
NVD status: Analyzed

Frequently asked questions

What is CVE-2013-3163?

Is CVE-2013-3163 actively exploited?

Yes. CVE-2013-3163 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-04-20.

What is the CVSS score for CVE-2013-3163?

CVE-2013-3163 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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