Memory corruption in Cisco IOS XE 3.17 and 3.18
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A vulnerability in the Transaction Language 1 (TL1) code of Cisco ASR 900 Series routers could allow an unauthenticated, remote attacker to cause a reload of, or remotely execute code on, the affected system. This vulnerability affects Cisco ASR 900 Series Aggregation Services Routers (ASR902, ASR903, and ASR907) that are running the following releases of Cisco IOS XE Software: 3.17.0S 3.17.1S 3.17.2S 3.18.0S 3.18.1S. More Information: CSCuy15175. Known Affected Releases: 15.6(1)S 15.6(2)S. Known Fixed Releases: 15.6(1)S2.12 15.6(1.17)S0.41 15.6(1.17)SP 15.6(2)SP 16.4(0.183) 16.5(0.10).
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco IOS XE 3.17 and 3.18 | Cisco IOS XE 3.17 and 3.18 | — | No fix listed | CNA |
- Cisco IOS XE 3.17 and 3.18 Vendor— Affected Cisco IOS XE 3.17 and 3.18 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:3.17.0s:*:*:*:*:*:*:* | 3.17.0s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.17.1s:*:*:*:*:*:*:* | 3.17.1s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.17.2s:*:*:*:*:*:*:* | 3.17.2s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.17s:*:*:*:*:*:*:* | 3.17s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.18.0s:*:*:*:*:*:*:* | 3.18.0s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.18.1s:*:*:*:*:*:*:* | 3.18.1s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.18s:*:*:*:*:*:*:* | 3.18s | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:3.17.0s:*:*:*:*:*:*:* Versions 3.17.0s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.17.1s:*:*:*:*:*:*:* Versions 3.17.1s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.17.2s:*:*:*:*:*:*:* Versions 3.17.2s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.17s:*:*:*:*:*:*:* Versions 3.17s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.18.0s:*:*:*:*:*:*:* Versions 3.18.0s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.18.1s:*:*:*:*:*:*:* Versions 3.18.1s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.18s:*:*:*:*:*:*:* Versions 3.18s Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6441
- 2026-10-03 Alias added: GHSA-g5ff-5f8x-677m
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-2016-6441 · CVE Program
- CVE-2016-6441 · NVD
- FIRST EPSS
- GHSA-g5ff-5f8x-677m · 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