CVE-2021-1226: A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communic

Q: How do I fix CVE-2021-1226?

emergency responder: mitigate or apply the listed mitigation; prime license manager: mitigate or apply the listed mitigation; unified communications manager: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2021-1226 being exploited?

CVE-2021-1226 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-1226 affect?

CVE-2021-1226 affects emergency responder, prime license manager, unified communications manager. Severity is medium (CVSS 4.3). A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection,

Q: How urgent is CVE-2021-1226?

Priority 30/100. No elevated risk signals yet.

Routine

MEDIUM 4.3MITIGATEMITIGATEMITIGATE

CVE-2021-1226 is a medium-severity flaw (CVSS 4.3) affecting emergency responder, prime license manager, unified communications manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection, Cisco Emergency Responder, and Cisco Prime License Manager could allow an authenticated, remote attacker to view sensitive information in clear text on an affected system. The vulnerability is due to the stora

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-532
Published	2021-01-13
Last modified	2026-06-17

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-01-13 22:15 UTCPublished CVE record published
2026-06-17 03:31 UTCUpdated Record last modified

cisco emergency responder MITIGATE

Affected: >= 12.5\(1\) and < 12.5\(1\)su3 · 10.5\(2\) · 11.5\(1\) · 12.0\(1\)

Fixed in: 12.5\(1\)su3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy emergency-responder || rpm -q emergency-responder || emergency-responder --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

cisco prime license manager MITIGATE

Affected: >= 11.5\(1\) and < 11.5\(1\)su9 · 10.5\(2\)

Fixed in: 11.5\(1\)su9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy prime-license-manager || rpm -q prime-license-manager || prime-license-manager --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

cisco unified communications manager MITIGATE

Affected: >= 11.5\(1\) and < 11.5\(1\)su9 · 10.5\(2\)

Fixed in: 11.5\(1\)su9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy unified-communications-manager || rpm -q unified-communications-manager || unified-communications-manager --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

cisco unified communications manager im \& presence service MITIGATE

Affected: >= 11.5\(1\) and < 11.5\(1\)su9 · >= 12.5\(1\) and < 12.5\(1\)su3 · 10.5\(2\) · 12.0\(1\)

Fixed in: 11.5\(1\)su9, 12.5\(1\)su3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy unified-communications-manager-im--presence-service || rpm -q unified-communications-manager-im--presence-service || unified-communications-manager-im--presence-service --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

cisco unity connection MITIGATE

Affected: >= 11.5\(1\) and < 11.5\(1\)su9 · >= 12.0\(1\) and < 12.0\(1\)su4 · >= 12.5\(1\) and < 12.5\(1\)su3 · 10.5\(2\)

Fixed in: 11.5\(1\)su9, 12.0\(1\)su4, 12.5\(1\)su3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy unity-connection || rpm -q unity-connection || unity-connection --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-1226?

emergency responder: mitigate or apply the listed mitigation; prime license manager: mitigate or apply the listed mitigation; unified communications manager: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-1226 being exploited?

CVE-2021-1226 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-1226 affect?

CVE-2021-1226 affects emergency responder, prime license manager, unified communications manager. Severity is medium (CVSS 4.3). A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection,

How urgent is CVE-2021-1226?

Priority 30/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities · Unity vulnerabilities

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References

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