CVE-2017-3839 json
An XML External Entity vulnerability in the web-based user interface of the Cisco Secure Access Control System (ACS) could allow an unauthe…
published 2017-02-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-12956
- cvss
- 4.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
An XML External Entity vulnerability in the web-based user interface of the Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to have read access to part of the information stored in the affected system. More Information: CSCvc04845. Known Affected Releases: 5.8(2.5).
Exploit prediction
1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- n/a Cisco Secure Access Control System
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170215-acs1
vendor-advisory
-
securityfocus.com
/bid/96236
vdb-entry
-
securitytracker.com
/id/1037836
vdb-entry
Sources
- CVE List CVE-2017-3839
- NVD CVE-2017-3839
Fencer Intel 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.