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Fencer Vulns
medium 6.5

CVE-2021-1355 json

Cisco Unified Communications Products Vulnerabilities

published 2021-01-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-6822

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

Multiple vulnerabilities in Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an attacker to conduct path traversal attacks and SQL injection attacks on an affected system. One of the SQL injection vulnerabilities that affects Unified CM IM&P also affects Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) and could allow an attacker to conduct SQL injection attacks on an affected system. For more information about these vulnerabilities, see the Details section of this advisory.

Patch / fix

  • cisco unified_communications_manager 11.5\(1\)su9, 12.0\(1\)su4, 12.5\(1\)su4
  • cisco unified_communications_manager_im_and_presence_service 11.5\(1\)su9, 12.5\(1\)su4

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.37% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

  • Cisco Cisco Unified Communications Manager

Classification

Weakness
  • CWE-35 Path Traversal: '.../...//'
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.