CVE-2019-1738
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2019
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vulnerability
A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to a parsing issue on DNS packets. An attacker could exploit these vulnerabilities by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Cisco IOS and IOS-XE Software
- Vendor
- Cisco
- Product
- Cisco IOS and IOS-XE Software
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.16.0S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.1S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.0aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.1aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.2S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.2aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.0bS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.0cS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.3S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.2bS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.3aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4bS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4gS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.5S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4cS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4dS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.4eS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.16.5aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.17.0S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.17.1S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.17.2S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.17.1aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.17.3S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.17.4S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.2.0JA | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.2.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.2.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.3.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.3.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.3.1a | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.3.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.4.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.4.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.4.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.5.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.5.1a | affected | Unavailable | Unavailable | Unavailable | None listed |
| 16.5.1b | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.0aS | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.0S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.2S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.3S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.4S | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.0SP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1SP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1aSP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1gSP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1bSP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1cSP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.2SP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1hSP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.2aSP | affected | Unavailable | Unavailable | Unavailable | None listed |
| 3.18.1iSP | affected | Unavailable | Unavailable | Unavailable | None listed |