CVE-2021-1355 Cisco Unified Communications Products Vulnerabilities
Attackers can perform SQL injection and path traversal attacks on Cisco Unified Communications Manager products to access or modify data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-1355?
CVE-2021-1355 is a medium-severity SQL injection vulnerability in Cisco Unified Communications Manager, published on 20 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2021-1355?
It affects 2 products.
Products include Cisco Unified Communications Manager, Cisco Unified Communications Manager Im and Presence Service.
How do I fix CVE-2021-1355?
No fix has been published for CVE-2021-1355 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2021-1355 being exploited?
There is no known exploitation of CVE-2021-1355 in the wild and no public exploit code.
Other vulnerabilities in Cisco Unified Communications Manager
- CVE-2026-20230 Cisco Unified Communications Manager Server-Side Request Forgery (SSRF)
- CVE-2026-20045 Cisco Unified Communications Products Code Injection
- CVE-2025-20309 Cisco Unified Communications Manager Static SSH Credentials Vulnerability
- CVE-2011-1643 Information disclosure in n/a
- CVE-2024-20253 Deserialization in Cisco Packaged Contact Center Enterprise
Sources
Also known as GHSA-xp6m-4hv5-x9xm.