CVE-2026-76435
Cisco Expressway Series Information Disclosure Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- cisco
Description
A vulnerability in Cisco Expressway Series could allow an unauthenticated, remote attacker to obtain sensitive information from an affected device. This vulnerability is due to insufficient authorization checks of HTTP requests during Mobile and Remote Access (MRA) provisioning. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to access sensitive information that they would otherwise not have authorization to access. Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.
Timeline
ID reserved
By cisco
- 2 months later
· 2 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.43% · top 62% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway
- affected X8.11.2
- affected X8.6
- affected X8.11.3
- affected X8.2.2
- affected X8.8.3
- affected X8.11.0
- affected X12.5.2
- affected X8.1.1
- affected X8.9
- affected X12.5.1
- affected X12.5.6
- affected X8.7.3
- affected X12.6.0
- affected X8.11.1
- affected X8.5
- affected X8.9.1
- affected X8.10.2
- affected X8.8.2
- affected X8.5.3
- affected X8.1
- affected X8.9.2
- affected X8.11.4
- affected X12.5.4
- affected X8.8.1
- affected X8.2.1
- affected X8.5.1
- affected X8.6.1
- affected X8.1.2
- affected X8.8
- affected X8.10.0
- affected X12.5.3
- affected X8.10.1
- affected X12.5.7
- affected X8.10.3
- affected X8.7.1
- affected X8.2
- affected X12.5.8
- affected X8.7
- affected X8.5.2
- affected X12.5.9
- and 53 more
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-76435)Record last updated .