CVE-2019-1748 json
Cisco IOS and IOS XE Software Network Plug-and-Play Agent Certificate Validation Vulnerability
published 2019-03-27 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10305
- cvss
- 7.4
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
A vulnerability in the Cisco Network Plug-and-Play (PnP) agent of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability exists because the affected software insufficiently validates certificates. 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 and modify confidential information on user connections to the affected software.
Patch / fix
Exploit prediction
1.18% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.4 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 3.1 | 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- Cisco Cisco IOS and IOS XE Software
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
- Technology feeds
References
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-pnp-cert
vendor-advisory, patch
-
securityfocus.com
/bid/107619
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2019-1748
- NVD CVE-2019-1748
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