CVE-2021-27253

highPriorität · verfolgen · 35EPSS 0.011 · 66. PerzentilEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.13% (66th) EPSS

CVSS 8.3 · high

Is it mine?

44 products

Prüfe deine Angriffsfläche

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · bewertet 2026-10-27

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Nighthawk R7800. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the rc_service parameter provided to apply_bind.cgi. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12303.

cvss

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

8.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.08.3highAV:A/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 6.5 · Auswirkung 10

v3.18.8highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 5.9

v3.08.8highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.08.8highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · zdi-disclosures@trendmicro.comAusnutzbarkeit 2.8 · Auswirkung 5.9

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-787USprimärCWE-122US

betroffene Produkte (44)

Betroffene Produkte und Versionsbereiche.

NETGEAR R7800≤ firmware version 1.0.2.76enisa_euvdEU
netgear br200 firmware< 5.10.0.5nvdUScpe:2.3:o:netgear:br200_firmware:*:*:*:*:*:*:*:*
netgear br500 firmware< 5.10.0.5nvdUScpe:2.3:o:netgear:br500_firmware:*:*:*:*:*:*:*:*
netgear d7800 firmware< 1.0.1.60nvdUScpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
netgear ex6100v2 firmware< 1.0.1.98nvdUScpe:2.3:o:netgear:ex6100v2_firmware:*:*:*:*:*:*:*:*
netgear ex6150 firmware< 1.0.1.98nvdUScpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*
netgear ex6250 firmware< 1.0.0.134nvdUScpe:2.3:o:netgear:ex6250_firmware:*:*:*:*:*:*:*:*
netgear ex6400 firmware< 1.0.2.158nvdUScpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:*
netgear ex6400v2 firmware< 1.0.0.134nvdUScpe:2.3:o:netgear:ex6400v2_firmware:*:*:*:*:*:*:*:*
netgear ex6410 firmware< 1.0.0.134nvdUScpe:2.3:o:netgear:ex6410_firmware:*:*:*:*:*:*:*:*
netgear ex6420 firmware< 1.0.0.134nvdUScpe:2.3:o:netgear:ex6420_firmware:*:*:*:*:*:*:*:*
netgear ex7300 firmware< 1.0.2.158nvdUScpe:2.3:o:netgear:ex7300_firmware:*:*:*:*:*:*:*:*
netgear ex7300v2 firmware< 1.0.0.134nvdUScpe:2.3:o:netgear:ex7300v2_firmware:*:*:*:*:*:*:*:*
netgear ex7320 firmware< 1.0.0.134nvdUScpe:2.3:o:netgear:ex7320_firmware:*:*:*:*:*:*:*:*
netgear ex7700 firmware< 1.0.0.216nvdUScpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*
netgear ex8000 firmware< 1.0.1.232nvdUScpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*
netgear lbr20 firmware< 2.6.3.50nvdUScpe:2.3:o:netgear:lbr20_firmware:*:*:*:*:*:*:*:*
netgear r7800 firmware< 1.0.2.80nvdUScpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
netgear r8900 firmware< 1.0.5.28nvdUScpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
netgear r9000 firmware< 1.0.5.28nvdUScpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*

20 von 44 angezeigt

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quellen

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cnnvd enisa_euvd nvd NVD CVE.org MITRE

veröffentlicht 2021-04-14geändert 2026-06-17

verwandt (16,128)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-86950US	—OT kritisch	26.2% (98th)	KEV	2026-09-28
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1,…
CVE-2026-87491US	—OT kritisch	3.51% (89th)	KEV	2026-09-09
Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security…
CVE-2026-53362US	—OT kritisch	0.71% (53rd)	KEV	2026-07-04
In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branc…
CVE-2026-53266US	—OT kritisch	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
CVE-2026-11645US	—OT kritisch	2.44% (84th)	KEV	2026-06-09
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium…

+16123 weitere

Referenzen (7)

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