CVE-2025-20351

CWE-79 — Cross-site Scripting (XSS)CWE-121 — Stack-based Buffer Overflow4 documents4 sources
Severity
6.1MEDIUM
EPSS
0.0%
top 90.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
18
Cisco IP Phone 7811 FirmwareCisco IP Phone 7821 FirmwareCisco IP Phone 7841 Firmware+15 more
Timeline
PublishedOct 15

Description

A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running Cisco SIP Software could allow an unauthenticated, remote attacker to conduct XSS attacks against a user of the web UI. This vulnerability exists because the web UI of an affected device does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow t…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages18 packages

▶NVDcisco/video_phone_8875_firmware3.0\(1\) — 3.2\(1\)+2
▶NVDcisco/desk_phone_9841_firmware3.0\(1\) — 3.2\(1\)
▶NVDcisco/desk_phone_9851_firmware3.0\(1\) — 3.2\(1\)
▶NVDcisco/desk_phone_9861_firmware3.0\(1\) — 3.2\(1\)
▶NVDcisco/desk_phone_9871_firmware3.0\(1\) — 3.2\(1\)

🔴Vulnerability Details

2
CVEList
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Cross-Site Scripting Vulnerability↗2025-10-15
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GHSA
GHSA-q352-cxfj-h569: A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running Cisco SIP Softw↗2025-10-15
▶

📋Vendor Advisories

1
Cisco
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities↗2025-10-15
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