CVE-2023-20105

mediumpriority · track · 26EPSS 0.009 · 60 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.91% (60th) EPSS
CVSS 6.5 · medium
Is it mine?
68 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A vulnerability in the change password functionality of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with Read-only credentials to elevate privileges to Administrator on an affected system. This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by authenticating to the application as a Read-only user and sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to alter the passwords of any user on the system, including an administrative user, and then impersonate that user. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6–9.6

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6
v3.19.6criticalAV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:Hsecondary · ENISA EU
v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:Hsecondary · psirt@cisco.com USexploitability 3.1 · impact 5.8
v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:Hsecondary · Cisco PSIRT US
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20USCWE-829US
04

affected products (68)

Products and version ranges known to be affected.

showing 20 of 68
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2023-1400Cisco Expressway: Mehrere Schwachstellen ermöglichen PrivilegieneskalationDeutsch2023-06-08csaf · cert_bundDE

    Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Cisco Expressway und Cisco TelePresence ausnutzen, um seine Privilegien zu erhöhen.

  • cisco-sa-expressway-priv-esc-Ls2B9t7bCisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities2023-06-07csaf · cisco_csafUS

    Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated attacker with Administrator-level read-only credentials to elevate their privileges to Administrator with read-write credentials on an affected system. Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. Cisco has released software updates that address these vulnerabilities. There are workarounds that address one of these vulnerabilities.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisco_csafNVDCVE.orgMITRE
published 2023-06-28modified 2026-06-17
08

references (5)

External citations — patches, advisories, analysis.

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