CVE-2023-20221 [Medium] | CSRF in Video Phone 8875 Firmware

A vulnerability in the web-based management interface of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack against a user of the web-based management interface of an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading an authenticated user of the interface to follow a crafted link. A successful exploit could allow the attacker to perform a factory reset of the affected device, resulting in a Denial of Service (DoS) condition.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.58%	0.26%	-0.32%
2	2026-06-12	0.49%	0.58%	+0.09%
3	2026-05-11	—	0.49%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.58%

0.26%

-0.32%

2026-06-12

0.49%

0.58%

+0.09%

2026-05-11

—

0.49%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	3.6	[email protected]
6.5	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

3.6

[email protected]

6.5

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

3.6

[email protected]

Affected software / configurations for CVE-2023-20221

References for CVE-2023-20221

URL	Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-csrf-HOCmXW2c	Vendor Advisory

URL

CVE-2023-20221

Exploit prediction scoring system (EPSS) score for CVE-2023-20221

Common vulnerability scoring system (CVSS) metrics for CVE-2023-20221

Weakness enumeration for CVE-2023-20221

Affected software / configurations for CVE-2023-20221

References for CVE-2023-20221

Vendor	Product	Version	Raw CPE
cisco	video_phone_8875_firmware	< 2.0	cpe:2.3:o:cisco:video_phone_8875_firmware::::::::
cisco	ip_phone_6821_with_multiplatform_firmware	11-3-1mppsr4upg	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11-3-1mppsr4upg:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11-3-1msr2upg	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11-3-1msr2upg:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.0.0	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.0.0:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.0.1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.0.1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.0.1_msr1-1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.0.1_msr1-1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.0.2	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.0.2:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.1.1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.1.1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.1.1_msr1-1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.1.1_msr1-1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.1.1_msr2-1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.1.1_msr2-1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.1.2	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.1.2:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.1.2_msr1-1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.1.2_msr1-1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.1.2_msr3-1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.1.2_msr3-1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.2.1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.2.1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.2.2	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.2.2:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.2.3	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.2.3:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.2.3_msr1-1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.2.3_msr1-1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.2.4	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.2.4:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.1_msr1-3	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.1_msr1-3:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.1_msr2-6	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.1_msr2-6:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.1_msr3-3	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.1_msr3-3:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.2	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.2:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.3	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.3:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.3_msr1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.3_msr1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.4	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.4:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.5	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.5:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.6	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.6:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.6sr1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.6sr1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.7	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.7:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.7sr1	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.7sr1:::::::*
cisco	ip_phone_6821_with_multiplatform_firmware	11.3.7sr2	cpe:2.3:o:cisco:ip_phone_6821_with_multiplatform_firmware:11.3.7sr2:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11-3-1mppsr4upg	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11-3-1mppsr4upg:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11-3-1msr2upg	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11-3-1msr2upg:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.0.0	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.0.0:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.0.1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.0.1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.0.1_msr1-1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.0.1_msr1-1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.0.2	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.0.2:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.1.1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.1.1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.1.1_msr1-1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.1.1_msr1-1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.1.1_msr2-1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.1.1_msr2-1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.1.2	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.1.2:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.1.2_msr1-1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.1.2_msr1-1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.1.2_msr3-1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.1.2_msr3-1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.2.1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.2.1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.2.2	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.2.2:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.2.3	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.2.3:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.2.3_msr1-1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.2.3_msr1-1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.2.4	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.2.4:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.1_msr1-3	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.1_msr1-3:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.1_msr2-6	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.1_msr2-6:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.1_msr3-3	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.1_msr3-3:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.2	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.2:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.3	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.3:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.3_msr1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.3_msr1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.4	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.4:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.5	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.5:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.6	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.6:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.6sr1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.6sr1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.7	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.7:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.7sr1	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.7sr1:::::::*
cisco	ip_phone_6825_with_multiplatform_firmware	11.3.7sr2	cpe:2.3:o:cisco:ip_phone_6825_with_multiplatform_firmware:11.3.7sr2:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11-3-1mppsr4upg	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11-3-1mppsr4upg:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11-3-1msr2upg	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11-3-1msr2upg:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.0.0	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.0.0:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.0.1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.0.1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.0.1_msr1-1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.0.1_msr1-1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.0.2	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.0.2:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.1.1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.1.1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.1.1_msr1-1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.1.1_msr1-1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.1.1_msr2-1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.1.1_msr2-1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.1.2	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.1.2:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.1.2_msr1-1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.1.2_msr1-1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.1.2_msr3-1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.1.2_msr3-1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.2.1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.2.1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.2.2	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.2.2:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.2.3	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.2.3:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.2.3_msr1-1	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.2.3_msr1-1:::::::*
cisco	ip_phone_6841_with_multiplatform_firmware	11.2.4	cpe:2.3:o:cisco:ip_phone_6841_with_multiplatform_firmware:11.2.4:::::::*