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TI-2021-01160 Aliases CVE-2021-1433GHSA-m47p-2p8x-qmpg

Cisco IOS XE SD-WAN Software vDaemon Buffer Overflow Vulnerability

Priority MEDIUM 42CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. This vulnerability is due to insufficient bounds checking when the device processes traffic. An attacker could exploit this vulnerability by sending crafted traffic to the device. The attacker must have a man-in-the-middle position between Cisco vManage and an associated device that is running an affected version of Cisco IOS XE SD-WAN Software. An exploit could allow the attacker to conduct a controllable buffer overflow attack (and possibly execute arbitrary commands as the root user) or cause a device reload, resulting in a denial of service (DoS) condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02336 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
CiscoCisco IOS XE Softwareall versions—No fix listedCNA
  • Cisco IOS XE Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 23

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:*3.15.1xbsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:*3.15.2xbsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*16.12.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:*16.12.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*16.12.1cVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*16.12.1sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*16.12.1tVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:*16.12.1wVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1x:*:*:*:*:*:*:*16.12.1xVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:*16.12.1yVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* Versions 3.15.1xbs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* Versions 3.15.2xbs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* Versions 16.12.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:* Versions 16.12.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:* Versions 16.12.1c Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* Versions 16.12.1s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:* Versions 16.12.1t Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:* Versions 16.12.1w Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1x:*:*:*:*:*:*:* Versions 16.12.1x Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:* Versions 16.12.1y Vulnerable ·Cisco
Show 13 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:16.12.1z:*:*:*:*:*:*:*16.12.1zVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:*16.12.1zaVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:*16.12.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:*16.12.2aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*16.12.2sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:*16.12.2tVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*16.12.3VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.3a:*:*:*:*:*:*:*16.12.3aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*16.12.3sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*17.2.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*17.2.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:*17.2.1rVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*17.2.1vVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1z:*:*:*:*:*:*:* Versions 16.12.1z Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:* Versions 16.12.1za Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:* Versions 16.12.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:* Versions 16.12.2a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:* Versions 16.12.2s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:* Versions 16.12.2t Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:* Versions 16.12.3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.3a:*:*:*:*:*:*:* Versions 16.12.3a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:* Versions 16.12.3s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:* Versions 17.2.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:* Versions 17.2.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:* Versions 17.2.1r Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:* Versions 17.2.1v Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1433
  2. 2026-10-03 Alias added: GHSA-m47p-2p8x-qmpg

References

Advisory 1

  • 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
See all 561 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences