CVE-2022-20942Network attack vector

Authenticated credential disclosure via weak backend authorization

Published Nov 3, 2022 · Updated Aug 3, 2024

Information disclosure in Cisco security appliance web interfaces allows remote authenticated users to retrieve stored confidential data. In Cisco Secure Email, Secure Web Appliance, and Secure Email and Web Manager, back-end authorization checks weakly enforce access controls on crafted HTTP requests. A valid management session is required, but exploitation exposes device-held secrets, including user credentials, without affecting integrity or availability.

CVSS severity6.5
Medium
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Cisco security appliance web interfaces allows remote authenticated users to retrieve stored confidential data. In Cisco Secure Email, Secure Web Appliance, and Secure Email and Web Manager, back-end authorization checks weakly enforce access controls on crafted HTTP requests. A valid management session is required, but exploitation exposes device-held secrets, including user credentials, without affecting integrity or availability.

The record

CVE
CVE-2022-20942
Published
Nov 3, 2022
Updated
Aug 3, 2024
Vendor
ClamAV
Product
Cisco Secure Email
Classifications
CWE-359
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.0.3-238
  2. Affected versionversion=11.1.0-069
  3. Affected versionversion=11.1.0-128
  4. Affected versionversion=11.1.0-131
  5. Affected versionversion=12.0.0-419
  6. Affected versionversion=12.1.0-071
  7. Affected versionversion=12.1.0-087
  8. Affected versionversion=12.1.0-089
  9. Affected versionversion=12.5.0-066
  10. Affected versionversion=13.0.0-392
  11. Affected versionversion=13.5.1-277
  12. Affected versionversion=14.0.0-698
  13. Affected versionversion=14.2.0-620

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Secure Emailversion=11.0.3-238; version=11.1.0-069; version=11.1.0-128; version=11.1.0-131; version=12.0.0-419; version=12.1.0-071; version=12.1.0-087; version=12.1.0-089; version=12.5.0-066; version=13.0.0-392; version=13.5.1-277; version=14.0.0-698; version=14.2.0-620
ClamAV · Cisco Secure Web Applianceversion=11.7.0-406; version=11.7.0-418; version=11.7.1-006; version=11.7.1-020; version=11.7.1-049; version=11.7.2-011; version=11.8.0-414; version=11.8.1-023; version=11.8.3-018; version=11.8.3-021; version=12.0.1-268; version=12.0.3-007; version=12.5.1-011; version=12.5.2-007
ClamAV · Cisco Secure Email and Web Managerversion=11.0.0-115; version=11.0.1-161; version=11.5.1-105; version=12.0.0-452; version=12.0.1-011; version=12.5.0-636; version=12.5.0-658; version=12.5.0-670; version=12.5.0-678; version=12.8.1-002; version=13.0.0-277; version=13.6.2-078; version=13.8.1-068; version=13.8.1-074; version=14.0.0-404; version=14.1.0-223; version=14.1.0-227; version=14.2.0-212

Published CVSS scores

6.5Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-359Exposure of Private Personal Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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