A vulnerability in the implementation of 802.11v Basic Service Set (BSS) Transition Management functionality in Cisco Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation of 802.11v BSS Transition Management Response packets that an affected device receives from wireless clients. An attacker could exploit this vulnerability by sending a malformed 802.11v BSS Transition Management Response packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition. Cisco Bug IDs: CSCvb57803.
CVE-2017-12275
HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence
Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.4Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.4
- EG Score
- 7.4(medium)
- EPSS
- 49.0%
- KEV
- Not listed
Published
November 2, 2017
Last Modified
May 13, 2026
References (6)
- psirt@ciscohttp://www.securityfocus.com/bid/101657
- psirt@ciscohttp://www.securitytracker.com/id/1039713
- psirt@ciscohttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc2
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/101657
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039713
- af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc2
Data Freshness Timeline
(refreshed 9× in last 7d / 36× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-05-22 08:21 UTCEG score recompute
- 2026-05-22 08:21 UTCGHSA enrichment
- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-18 21:30 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2017-12275?
CVE-2017-12275 is a high vulnerability published on November 2, 2017. A vulnerability in the implementation of 802.11v Basic Service Set (BSS) Transition Management functionality in Cisco Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The…
When was CVE-2017-12275 disclosed?
CVE-2017-12275 was first published in the National Vulnerability Database on November 2, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-12275 actively exploited?
CVE-2017-12275 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-12275?
CVE-2017-12275 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2017-12275?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-12275, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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