PatchTheCVECVE-2026-20035: A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, remote attac
CVE-2026-20035 is a high-severity flaw (CVSS 7.2) affecting unity connection. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, remote attacker to conduct SSRF attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to send arbitrary network requests that are source
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.2 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 77%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-05-06 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
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-2026-20035?
unity connection: upgrade to 14.0. Exact commands for each OS are on this page.
Is CVE-2026-20035 being exploited?
CVE-2026-20035 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-2026-20035 affect?
CVE-2026-20035 affects unity connection. Severity is high (CVSS 7.2). A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, remote attacker to conduct SSRF attacks through an affected device. This vulnerability is due to improper input validation for specific HTT
How urgent is CVE-2026-20035?
Priority 36/100. High severity; Remotely exploitable, no login, no user action
Software pages
Cisco vulnerabilities · Unity vulnerabilities
Related CVEs
- CVE-2026-20034 HIGH 8.8 UPGRADE A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated,
- CVE-2026-20078 MEDIUM 6.5 UPGRADE Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to downl