CVE-2013-3463 — The protocol-inspection feature on Cisco Adaptive Security Appliances (ASA) devices does not properly implement the idle timeout, which allows remote attackers to cause a denial of service (connection-table exhaustion) via crafted requests that use an inspected protocol, aka Bug ID CSCuh13899

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MEDIUM

The protocol-inspection feature on Cisco Adaptive Security Appliances (ASA) devices does not properly implement the idle timeout, which allows remote attackers to cause a denial of service (connection-table exhaustion) via crafted requests that use an inspected protocol, aka Bug ID CSCuh13899

Published Aug 30, 2013

4.3

MEDIUM

CVSS 2.0

EPSS 2.43%

Description

The protocol-inspection feature on Cisco Adaptive Security Appliances (ASA) devices does not properly implement the idle timeout, which allows remote attackers to cause a denial of service (connection-table exhaustion) via crafted requests that use an inspected protocol, aka Bug ID CSCuh13899.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.43% 0.02427

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.02427

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	2.43% (0.02427)	83.63th	v5 (v2026.06.15)
Jun 15, 2026	2.41% (0.02406)	81.86th	v5 (v2026.06.15)
Mar 17, 2025	1.17% (0.01166)	77.16th	v4 (v2025.03.14)
Dec 12, 2024	0.29% (0.00293)	70.00th	v3 (v2023.03.01)
Feb 8, 2024	0.29% (0.00293)	68.30th	v3 (v2023.03.01)
Mar 7, 2023	0.29% (0.00293)	64.26th	v3 (v2023.03.01)
Mar 6, 2023	1.21% (0.01213)	66.61th	v2 (v2022.01.01)
Feb 17, 2023	1.21% (0.01213)	66.22th	v2 (v2022.01.01)
Apr 1, 2022	1.21% (0.01213)	64.21th	v2 (v2022.01.01)
Feb 4, 2022	1.21% (0.01213)	40.54th	v2 (v2022.01.01)

Weaknesses (1)

CWE-264

References (4)

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3463
vendor-advisoryx_refsource_CISCOVendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=30607
x_refsource_CONFIRMVendor Advisory
http://www.securityfocus.com/bid/62068
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1028968
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3463		vendor-advisoryx_refsource_CISCOVendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=30607		x_refsource_CONFIRMVendor Advisory
http://www.securityfocus.com/bid/62068		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1028968		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Aug 30, 2013

Updated Aug 6, 2024

Reserved May 6, 2013

Link CVE-2013-3463

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2013-3463

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-3463