CVE-2022-20752

mediumpriority · track · 21EPSS 0.010 · 64 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.04% (64th) EPSS

CVSS 5 · medium

Is it mine?

13 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to perform a timing attack. This vulnerability is due to insufficient protection of a system password. An attacker could exploit this vulnerability by observing the time it takes the system to respond to various queries. A successful exploit could allow the attacker to determine a sensitive system password.

remediations

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

A vendor fix is available.

FixedCisco Unified Communications Managercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco Unified Communications Manager / Cisco Unity Connectioncisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · psirt@cisco.com USexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-203USprimaryCWE-208USCWE-208US

affected products (13)

Products and version ranges known to be affected.

Cisco Cisco Unified Communications Managerall versionscisco_csafUS
Cisco Cisco Unified Communications Manager / Cisco Unity Connectionall versionscisco_csafUS
Cisco Cisco Unified Communications Manager≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco Unified Communications Manager≤ 12.5(1)SU6fstec_bduRU
Cisco Systems Inc. Cisco Unified Communications Manager14 → 14SU1fstec_bduRU
Cisco Systems Inc. Cisco Unified Communications Manager SME≤ 12.5(1)SU6fstec_bduRU
Cisco Systems Inc. Cisco Unified Communications Manager SME14 → 14SU1fstec_bduRU
Cisco Systems Inc. Unity Connection≤ 12.5(1)SU6fstec_bduRU
Cisco Systems Inc. Unity Connection14 → 14SU1fstec_bduRU
cisco unified communications manager12.5\(1\) → 12.5\(1\)su6nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unified communications manager14.0 → 14su1nvdUScpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
cisco unity connection12.5\(1\) → 12.5\(1\)su6nvdUScpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:*
cisco unity connection14.0 → 14su1nvdUScpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-ucm-timing-JVbHECOKCisco Unified Communications Products Timing Attack Vulnerability2022-07-06csaf · cisco_csafUS
A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to perform a timing attack. This vulnerability is due to insufficient protection of a system password. An attacker could exploit this vulnerability by observing the time it takes the system to respond to various queries. A successful exploit could allow the attacker to determine a sensitive system password. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

published 2022-07-06modified 2026-06-17

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+881 more

references (7)

External citations — patches, advisories, analysis.

scry

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