Security readout for executives and security teams
Plain-English summary
CVE-2021-1226 can expose credentials in clear text inside audit logs for Cisco Unified Communications products. An attacker already authenticated to the system could read logs and obtain credentials they should not have, potentially enabling discovery or management of network devices.
Executive priority
Treat as a moderate-priority credential exposure issue. It is not described as actively exploited, but stored credentials in logs can expand access if a lower-privileged account is compromised.
Technical view
Cisco describes an audit logging flaw caused by storage of certain unencrypted credentials. CVSS 3.1 is 4.3: network reachable, low privileges required, no user interaction, confidentiality impact only. The source bundle does not provide affected version ranges or confirmed fixed releases.
Likely exposure
Exposure is most likely in environments running Cisco Unified Communications Manager, Session Management Edition, IM and Presence Service, Unity Connection, Emergency Responder, or Prime License Manager where authenticated users can access audit logs.
Exploitation context
The attacker must already be authenticated and able to access audit logs. The bundle does not show CISA KEV listing, active exploitation, public exploit activity, or unauthenticated exploitation.
Researcher notes
Key constraints are authenticated access and audit-log visibility. The bundle identifies CWE-532 and affected product families but lacks version detail. Avoid assuming exploit availability or fixed releases beyond Cisco’s advisory.
Mitigation direction
- Review Cisco advisory for affected releases and official upgrade guidance.
- Restrict audit log access to explicitly authorized administrators.
- Rotate credentials that may have appeared in exposed audit logs.
- Review retained audit logs for clear-text credential exposure.
- Check Cisco guidance before changing production logging behavior.
Validation and detection
- Inventory Cisco Unified Communications products named in the advisory.
- Compare deployed versions against Cisco advisory applicability details.
- Confirm who can access audit logs on each affected system.
- Review audit logs for clear-text credentials using approved internal procedures.
- Verify exposed credentials cannot still manage network devices.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-532: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-1226 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20210113 Cisco Unified Communications Products Information Disclosure VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insertion of Sensitive Information into Log File
Insertion of Sensitive Information into Log File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.