The IP Phone Personal Address Book (PAB) Synchronizer feature in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.1, 4.2 before 4.2(3)SR4b, 4.3 before 4.3(2)SR1b, 5.x before 5.1(3e), 6.x before 6.1(3), and 7.0 before 7.0(2) sends privileged directory-service account credentials to the client in cleartext, which allows remote attackers to modify the CUCM configuration and perform other privileged actions by intercepting these credentials, and then using them in requests unrelated to the intended synchronization task, as demonstrated by (1) DC Directory account credentials in CUCM 4.x and (2) TabSyncSysUser account credentials in CUCM 5.x through 7.x
Published Mar 12, 2009
9.0
HIGHCVSS 2.0
EPSS 3.02%
Description
The IP Phone Personal Address Book (PAB) Synchronizer feature in Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.1, 4.2 before 4.2(3)SR4b, 4.3 before 4.3(2)SR1b, 5.x before 5.1(3e), 6.x before 6.1(3), and 7.0 before 7.0(2) sends privileged directory-service account credentials to the client in cleartext, which allows remote attackers to modify the CUCM configuration and perform other privileged actions by intercepting these credentials, and then using them in requests unrelated to the intended synchronization task, as demonstrated by (1) DC Directory account credentials in CUCM 4.x and (2) TabSyncSysUser account credentials in CUCM 5.x through 7.x.
Affected products
No data.
- 4.1
- 4.2
- 4.2\(3\)sr1
- 4.2\(3\)sr2b
- 4.2\(3\)sr3
- 4.2\(3\)sr4
- 4.3
- 4.3\(1\)sr.1
- 4.3\(2\)
- 4.3\(2\)sr1
- 5.0
- 5.1\(1\)
- 5.1\(2\)
- 5.1\(2a\)
- 5.1\(2b\)
- 5.1\(3\)
- 5.1\(3a\)
- 5.1\(3c\)
- 5.1\(3d\)
- 6.0
- 6.0\(1\)
- 6.0\(1a\)
- 6.1
- 6.1\(1\)
- 6.1\(1a\)
- 6.1\(2\)
- 6.1\(2\)su1
- 6.1\(3\)
- 7.0
- 7.0\(1\)
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.02% (0.03025) | 87.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.02% (0.03025) | 85.69th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.47% (0.01474) | 79.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.55% (0.00550) | 78.25th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.55% (0.00550) | 76.80th | v3 (v2023.03.01) |
| Apr 30, 2023 | 0.55% (0.00550) | 74.11th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.64% (0.00637) | 75.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.31% (0.01315) | 68.50th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.31% (0.01315) | 68.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.31% (0.01315) | 66.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.31% (0.01315) | 41.88th | v2 (v2022.01.01) |
References (8)
- http://osvdb.org/52589 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/34238 third-party-advisoryx_refsource_SECUNIA
- http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080a86434.html vendor-advisoryx_refsource_CISCO
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a8643c.shtml vendor-advisoryx_refsource_CISCOPatchVendor Advisory
- http://www.securityfocus.com/bid/34082 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1021839 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2009/0675 vdb-entryx_refsource_VUPENPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49196 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/52589 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/34238 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080a86434.html | vendor-advisoryx_refsource_CISCO | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080a8643c.shtml | vendor-advisoryx_refsource_CISCOPatchVendor Advisory | |
| http://www.securityfocus.com/bid/34082 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1021839 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2009/0675 | vdb-entryx_refsource_VUPENPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/49196 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.