Memory corruption in Cisco IOS XE 15.x
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · 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 handling of list headers in Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Cisco cBR-8 Converged Broadband Routers running vulnerable versions of Cisco IOS XE are affected. More Information: CSCux40637. Known Affected Releases: 15.5(3)S 15.6(1)S. Known Fixed Releases: 15.5(3)S2 15.6(1)S1 15.6(2)S 15.6(2)SP 16.4(1).
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 15.x | Cisco IOS XE 15.x | — | No fix listed | CNA |
- Cisco IOS XE 15.x Vendor— Affected Cisco IOS XE 15.x Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:3.16.0:*:*:*:*:*:*:* | 3.16.0 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.16.1:*:*:*:*:*:*:* | 3.16.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:3.17.0:*:*:*:*:*:*:* | 3.17.0 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:cbr-8_converged_broadband_router:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:ios_xe:3.16.0:*:*:*:*:*:*:* Versions 3.16.0 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.16.1:*:*:*:*:*:*:* Versions 3.16.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:3.17.0:*:*:*:*:*:*:* Versions 3.17.0 Vulnerable ·Cisco
- cpe:2.3:h:cisco:cbr-8_converged_broadband_router:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-3824
- 2026-10-03 Alias added: GHSA-m9rq-2938-mw9p
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-2017-3824 · CVE Program
- CVE-2017-3824 · NVD
- FIRST EPSS
- GHSA-m9rq-2938-mw9p · 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