CVE-2019-1757Cisco IOS and IOS XE Software Smart Call Home Certificate Validation Vulnerability
- 5.9MediumCVSS base score
- 1.1%Exploitation in 30 daysEPSS · top 35% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in the Cisco Smart Call Home feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on user connections to the affected software.
Timeline
ID reserved
By cisco
- 4 months later
· 4 months later
Published
- 6 years later
· 6 years 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% 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 5.9.
Affected products
Cisco · Cisco IOS and IOS XE Software
- affected 3.6.4E
- affected 3.6.5E
- affected 3.6.6E
- affected 3.6.5aE
- affected 3.6.5bE
- affected 3.6.7E
- affected 3.6.8E
- affected 3.6.7aE
- affected 3.6.7bE
- affected 3.7.4E
- affected 3.7.5E
- affected 3.16.1S
- affected 3.16.1aS
- affected 3.16.2S
- affected 3.16.2aS
- affected 3.16.3S
- affected 3.16.2bS
- affected 3.16.3aS
- affected 3.16.4S
- affected 3.16.4aS
- affected 3.16.4bS
- affected 3.16.4gS
- affected 3.16.5S
- affected 3.16.4cS
- affected 3.16.4dS
- affected 3.16.4eS
- affected 3.16.6S
- affected 3.16.5aS
- affected 3.16.5bS
- affected 3.16.7S
- affected 3.16.6bS
- affected 3.16.7aS
- affected 3.16.7bS
- affected 3.17.0S
- affected 3.17.1S
- affected 3.17.2S
- affected 3.17.1aS
- affected 3.17.3S
- affected 3.17.4S
- affected 16.2.1
- and 69 more
References
References2
- 20190327 Cisco IOS and IOS XE Software Smart Call Home Certificate Validation Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- 107617 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
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-2019-10314 (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-2019-1757)Record last updated .