CVE-2024-20256A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Web…
- 4.8MediumCVSS base score
- 0.29%Exploitation in 30 daysEPSS · top 78% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Web Appliance could allow an authenticated, remote attacker to conduct an XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Timeline
ID reserved
By cisco
- 6 months later
· 6 months later
Published
- 3 months later
· 3 months 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 | Medium4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Medium4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.29% · top 78% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.
Affected products
Cisco · Cisco Secure Web Appliance
- affected 11.7.0-406
- affected 11.7.0-418
- affected 11.7.1-049
- affected 11.7.1-006
- affected 11.7.1-020
- affected 11.7.2-011
- affected 11.8.0-414
- affected 11.8.1-023
- affected 11.8.3-018
- affected 11.8.3-021
- affected 12.0.1-268
- affected 12.0.3-007
- affected 12.5.2-007
- affected 12.5.1-011
- affected 12.5.4-005
- affected 12.5.5-004
- affected 12.5.6-008
- affected 14.5.0-498
- affected 14.5.1-016
- affected 14.0.3-014
- affected 14.0.2-012
- affected 14.0.4-005
- affected 15.0.0-322
Cisco · Cisco Secure Email and Web Manager
- affected 9.0.0-087
- affected 11.0.0-115
- affected 11.0.1-161
- affected 11.5.1-105
- affected 12.0.0-452
- affected 12.0.1-011
- affected 12.5.0-636
- affected 12.5.0-658
- affected 12.5.0-678
- affected 12.5.0-670
- affected 13.0.0-277
- affected 13.6.2-078
- affected 13.8.1-068
- affected 13.8.1-074
- affected 13.8.1-108
- affected 12.8.1-002
- affected 12.8.1-021
- affected 14.0.0-404
- affected 14.1.0-223
- affected 14.1.0-227
- affected 14.2.0-212
- affected 14.2.0-224
- affected 14.2.1-020
- affected 14.3.0-120
- affected 15.0.0-334
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
References1
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)
- EUVD EUVD-2024-17971 (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://cveledger.app/cve/CVE-2024-20256)Record last updated .