Cisco IOS XE Software Arbitrary File Upload Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A vulnerability in the web UI framework of Cisco IOS XE Software could allow an authenticated, remote attacker to make unauthorized changes to the filesystem of the affected device. The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by crafting a malicious file and uploading it to the device. An exploit could allow the attacker to gain elevated privileges on the affected device.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco IOS XE Software | 16.2.1; 16.2.2; 16.3.1; 16.3.2; 16.3.3; 16.3.1a; 16.3.4; 16.3.5; 16.3.5b; 16.3.6; 16.4.1; 16.4.2; 16.4.3; 16.5.1; 16.5.1a; 16.5.1b; 16.5.2; 16.5.3; 16.6.1; 16.6.2; 16.6.3; 16.7.1; 16.7.1a; 16.7.1b; 16.8.1; 16.8.1a; 16.8.1b; 16.8.1s; 16.8.1c; 16.8.1d; 16.8.1e | — | No fix listed | CNA |
- Cisco IOS XE Software VendorCisco Affected 16.2.1; 16.2.2; 16.3.1; 16.3.2; 16.3.3; 16.3.1a; 16.3.4; 16.3.5; 16.3.5b; 16.3.6; 16.4.1; 16.4.2; 16.4.3; 16.5.1; 16.5.1a; 16.5.1b; 16.5.2; 16.5.3; 16.6.1; 16.6.2; 16.6.3; 16.7.1; 16.7.1a; 16.7.1b; 16.8.1; 16.8.1a; 16.8.1b; 16.8.1s; 16.8.1c; 16.8.1d; 16.8.1e Fixed in — No fix listed CNA
CPE configurations NVD · 31
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* | 16.2.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.2.2:*:*:*:*:*:*:* | 16.2.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:* | 16.3.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:* | 16.3.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.2:*:*:*:*:*:*:* | 16.3.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.3:*:*:*:*:*:*:* | 16.3.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.4:*:*:*:*:*:*:* | 16.3.4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.5:*:*:*:*:*:*:* | 16.3.5 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.5b:*:*:*:*:*:*:* | 16.3.5b | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.6:*:*:*:*:*:*:* | 16.3.6 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* Versions 16.2.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.2.2:*:*:*:*:*:*:* Versions 16.2.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:* Versions 16.3.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:* Versions 16.3.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.2:*:*:*:*:*:*:* Versions 16.3.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.3:*:*:*:*:*:*:* Versions 16.3.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.4:*:*:*:*:*:*:* Versions 16.3.4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.5:*:*:*:*:*:*:* Versions 16.3.5 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.5b:*:*:*:*:*:*:* Versions 16.3.5b Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.6:*:*:*:*:*:*:* Versions 16.3.6 Vulnerable ·Cisco
Show 21 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:* | 16.4.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:* | 16.4.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.4.3:*:*:*:*:*:*:* | 16.4.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:* | 16.5.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:* | 16.5.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.5.1b:*:*:*:*:*:*:* | 16.5.1b | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.5.2:*:*:*:*:*:*:* | 16.5.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.5.3:*:*:*:*:*:*:* | 16.5.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:* | 16.6.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:* | 16.6.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.6.3:*:*:*:*:*:*:* | 16.6.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:* | 16.7.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.7.1a:*:*:*:*:*:*:* | 16.7.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.7.1b:*:*:*:*:*:*:* | 16.7.1b | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:* | 16.8.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1a:*:*:*:*:*:*:* | 16.8.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:* | 16.8.1b | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:* | 16.8.1c | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1d:*:*:*:*:*:*:* | 16.8.1d | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1e:*:*:*:*:*:*:* | 16.8.1e | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.8.1s:*:*:*:*:*:*:* | 16.8.1s | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:* Versions 16.4.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:* Versions 16.4.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.4.3:*:*:*:*:*:*:* Versions 16.4.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:* Versions 16.5.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:* Versions 16.5.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.5.1b:*:*:*:*:*:*:* Versions 16.5.1b Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.5.2:*:*:*:*:*:*:* Versions 16.5.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.5.3:*:*:*:*:*:*:* Versions 16.5.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:* Versions 16.6.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:* Versions 16.6.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.6.3:*:*:*:*:*:*:* Versions 16.6.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:* Versions 16.7.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.7.1a:*:*:*:*:*:*:* Versions 16.7.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.7.1b:*:*:*:*:*:*:* Versions 16.7.1b Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:* Versions 16.8.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1a:*:*:*:*:*:*:* Versions 16.8.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:* Versions 16.8.1b Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:* Versions 16.8.1c Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1d:*:*:*:*:*:*:* Versions 16.8.1d Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1e:*:*:*:*:*:*:* Versions 16.8.1e Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.8.1s:*:*:*:*:*:*:* Versions 16.8.1s Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1743
- 2026-10-03 Alias added: GHSA-vvhx-6jgc-mjr6
References
More Cisco Ios Xe vulnerabilities
- TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
- TI-2018-00122 Memory corruption in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
- TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
- TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
- TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
- TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2019-1743 · CVE Program
- CVE-2019-1743 · NVD
- FIRST EPSS
- GHSA-vvhx-6jgc-mjr6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences