CVE-2021-1437

mediumPriorität · verfolgen · 31EPSS 0.015 · 75. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.55% (75th) EPSS

CVSS 5 · medium

Is it mine?

14 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, remote attacker to obtain confidential information from an affected device. This vulnerability is due to an unrestricted Trivial File Transfer Protocol (TFTP) configuration. An attacker could exploit this vulnerability by sending a specific TFTP request to an affected device. A successful exploit could allow the attacker to download any file from the filesystem of the affected access point (AP).

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenCisco Aironet Access Point Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
BehobenCisco Aironet Access Point Software (IOS XE Controller)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · Cisco PSIRT US

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-275USCWE-275US

betroffene Produkte (14)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco Aironet Access Point Softwarealle Versionencisco_csafUS
Cisco Cisco Aironet Access Point Software (IOS XE Controller)alle Versionencisco_csafUS
Cisco Cisco Aironet Access Point Software≤ n/aenisa_euvdEU
Cisco Systems Inc. Catalyst 9100alle Versionenfstec_bduRU
Cisco Systems Inc. Catalyst IW 6300alle Versionenfstec_bduRU
Cisco Systems Inc. Cisco Aironet 1540alle Versionenfstec_bduRU
Cisco Systems Inc. Cisco Aironet 1560alle Versionenfstec_bduRU
Cisco Systems Inc. Cisco Aironet 1800alle Versionenfstec_bduRU
Cisco Systems Inc. Cisco Aironet 2800alle Versionenfstec_bduRU
Cisco Systems Inc. Cisco Aironet 3800alle Versionenfstec_bduRU
Cisco Systems Inc. Cisco Aironet 4800alle Versionenfstec_bduRU
cisco aironet access point softwarealle VersionennvdUScpe:2.3:a:cisco:aironet_access_point_software:*:*:*:*:*:*:*:*
cisco catalyst 9800 firmware17.1 → 17.3.3nvdUScpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:*
cisco wireless lan controller software8.10.112.0 → 8.10.142.0nvdUScpe:2.3:a:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-aironet-info-disc-BfWqghjCisco Aironet Access Points FlexConnect Upgrade Information Disclosure Vulnerability2021-03-24csaf · cisco_csafUS
A vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, remote attacker to obtain confidential information from an affected device. This vulnerability is due to an unrestricted Trivial File Transfer Protocol (TFTP) configuration. An attacker could exploit this vulnerability by sending a specific TFTP request to an affected device. A successful exploit could allow the attacker to download any file from the filesystem of the affected access point (AP). Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

veröffentlicht 2021-03-24geändert 2026-06-17

Referenzen (5)

Externe Belege — Patches, Meldungen, Analysen.

scry

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