CVE-2012-1327 — dot11t/t_if_dot11_hal_ath.c in Cisco IOS 12.3, 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (assertion failure and reboot) via 802.11 wireless traffic, as demonstrated by a video call from Apple iOS 5.0 on an iPhone 4S, aka Bug ID CSCtt94391

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MEDIUM

dot11t/t_if_dot11_hal_ath.c in Cisco IOS 12.3, 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (assertion failure and reboot) via 802.11 wireless traffic, as demonstrated by a video call from Apple iOS 5.0 on an iPhone 4S, aka Bug ID CSCtt94391

Published May 3, 2012

6.1

MEDIUM

CVSS 2.0

EPSS 0.68%

Description

dot11t/t_if_dot11_hal_ath.c in Cisco IOS 12.3, 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (assertion failure and reboot) via 802.11 wireless traffic, as demonstrated by a video call from Apple iOS 5.0 on an iPhone 4S, aka Bug ID CSCtt94391.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.68% 0.00677

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

EPSS probability 0.00677

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 (11 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	0.68% (0.00677)	50.47th	v5 (v2026.06.15)
Jun 15, 2026	0.68% (0.00684)	47.54th	v5 (v2026.06.15)
Mar 17, 2025	0.17% (0.00167)	35.39th	v4 (v2025.03.14)
Dec 12, 2024	0.14% (0.00140)	51.09th	v3 (v2023.03.01)
Dec 2, 2023	0.14% (0.00140)	49.22th	v3 (v2023.03.01)
Jul 28, 2023	0.15% (0.00153)	50.70th	v3 (v2023.03.01)
Mar 7, 2023	0.16% (0.00159)	50.61th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-284

References (2)

http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
x_refsource_CONFIRMRelease NotesVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/75413
vdb-entryx_refsource_XF

Link	Providers	Tags
http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html		x_refsource_CONFIRMRelease NotesVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/75413		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published May 3, 2012

Updated Aug 6, 2024

Reserved Feb 27, 2012

Link CVE-2012-1327

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2012-1327

Red Hat

Severity n/a

Public date n/a

Links CVE-2012-1327