CVE-2021-34730

highPriorität · beachten · 55EPSS 0.185 · 97. PerzentilExploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

18.5% (97th) EPSS

CVSS 10 · high

Is it mine?

11 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 Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of incoming UPnP traffic. An attacker could exploit this vulnerability by sending a crafted UPnP request to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition. Cisco has not released software updates that address this vulnerability.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenCisco Small Business RV Series Router Firmwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

10.0

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 9.8–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Cisco PSIRT US

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

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

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-787USprimärCWE-121USCWE-121US

Exploits (1)

Öffentlicher Proof-of-Concept- und Exploit-Code.

badmonkey7/CVE-2021-34730Cisco RV110w UPnP stack overflow PoC · poc_in_github

betroffene Produkte (11)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco Small Business RV Series Router Firmwarealle Versionencisco_csafUS
Cisco Cisco Small Business RV Series Router Firmware≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco RV130alle Versionenfstec_bduRU
Cisco Systems Inc. RV110W Wireless-N VPNalle Versionenfstec_bduRU
Cisco Systems Inc. RV130W Wireless-N Multifunction VPN Routeralle Versionenfstec_bduRU
Cisco Systems Inc. RV215W Wireless-N VPNalle Versionenfstec_bduRU
cisco application extension platform= 1.0.3.55nvdUScpe:2.3:a:cisco:application_extension_platform:*:*:*:*:*:*:*:*
cisco rv110w wireless-n vpn firewall firmwarealle VersionennvdUScpe:2.3:o:cisco:rv110w_wireless-n_vpn_firewall_firmware:*:*:*:*:*:*:*:*
cisco rv130 vpn router firmwarealle VersionennvdUScpe:2.3:o:cisco:rv130_vpn_router_firmware:*:*:*:*:*:*:*:*
cisco rv130w wireless-n multifunction vpn router firmwarealle VersionennvdUScpe:2.3:o:cisco:rv130w_wireless-n_multifunction_vpn_router_firmware:*:*:*:*:*:*:*:*
cisco rv215w wireless-n vpn router firmwarealle VersionennvdUScpe:2.3:o:cisco:rv215w_wireless-n_vpn_router_firmware:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-cisco-sb-rv-overflow-htpymMB5Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerability2021-08-18csaf · cisco_csafUS
A vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of incoming UPnP traffic. An attacker could exploit this vulnerability by sending a crafted UPnP request to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition. Cisco has not 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 2021-08-18geändert 2026-06-17

verwandt (16,125)

Verwandte Einträge.

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+16120 weitere

Referenzen (4)

Externe Belege — Patches, Meldungen, Analysen.

scry

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