CVE-2014-3347 json
Cisco IOS 15.1(4)M2 on Cisco 1800 ISR devices, when the ISDN Basic Rate Interface is enabled, allows remote attackers to cause a denial of…
published 2014-08-28 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-3360
- cvss
- 5.4
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
Cisco IOS 15.1(4)M2 on Cisco 1800 ISR devices, when the ISDN Basic Rate Interface is enabled, allows remote attackers to cause a denial of service (device hang) by leveraging knowledge of the ISDN phone number to trigger an interrupt timer collision during entropy collection, leading to an invalid state of the hardware encryption module, aka Bug ID CSCul77897.
Exploit prediction
0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.4 | AV:N/AC:H/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
- Technology feeds
References
-
tools.cisco.com
/security/center/content/CiscoSecurityNotice/CVE-2014-3347
vendor-advisory
-
tools.cisco.com
/security/center/viewAlert.x?alertId=35453
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/95558
vdb-entry
-
securitytracker.com
/id/1030772
vdb-entry
-
securityfocus.com
/bid/69439
vdb-entry
Sources
- CVE List CVE-2014-3347
- NVD CVE-2014-3347
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.